{"title":"Compact Amplifiers","description":null,"products":[{"product_id":"cerwin-vega-cer-cvpm10001d","title":"Cerwin Vega CVPM10001D Mini Mono Class D Amplifier","description":"\u003cp\u003eThe Cerwin Vega CVPM10001D is a compact mono car amplifier designed to power a subwoofer system without requiring a large amplifier mounting footprint. Its single-channel Class D design delivers 500 watts RMS at 2 ohms or 310 watts RMS at 4 ohms. It is a practical choice for adding controlled low-frequency output to an aftermarket car audio system.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for listeners building a dedicated bass channel alongside factory or aftermarket full-range speakers. The variable low-pass crossover lets the amplifier focus on bass frequencies while the main speakers handle mids and highs. Its 2-ohm mono stability provides flexibility when selecting and wiring compatible subwoofers.\u003c\/p\u003e\u003cp\u003eFull Class D topology and a full PWM power supply support efficient operation in a small chassis. The amplifier is rated for 0.1% THD at 1 kHz and 4 ohms, with a damping factor greater than 70. A variable Vega Bass Boost control can add up to 12 dB at 45 Hz when used carefully with a suitable subwoofer and enclosure.\u003c\/p\u003e\u003cp\u003eThe CVPM10001D provides both high-level and low-level signal input capability, allowing integration with many factory and aftermarket source units. Its input sensitivity range is 0.15V to 6.0V, and the low-level input impedance is 20 kOhms. A remote level-control port supports convenient adjustment of the bass channel from the cabin when a compatible remote control is used.\u003c\/p\u003e\u003cp\u003eMeasuring just 7.64 inches long, the amplifier can fit in many under-seat, trunk, or custom-panel installations where space is limited. The compact housing includes an ambient backlit Cerwin Vega logo, plus power and protection indication. Use it with a correctly wired 2-ohm or 4-ohm subwoofer load, appropriate vehicle power wiring, and an inline fuse near the battery.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMono Class D Output:\u003c\/strong\u003e Delivers dedicated subwoofer power from a compact one-channel amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500W RMS at 2 Ohms:\u003c\/strong\u003e Supports compatible 2-ohm subwoofer configurations with 500 watts RMS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Filter:\u003c\/strong\u003e Adjusts bass-channel cutoff from 35 Hz to 500 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVega Bass Boost:\u003c\/strong\u003e Adds adjustable low-frequency boost up to 12 dB at 45 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- and Low-Level Inputs:\u003c\/strong\u003e Connects to speaker-level or RCA-level source signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Mini Chassis:\u003c\/strong\u003e Helps simplify installation where amplifier space is limited.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe CVPM10001D uses a compact metal amplifier chassis with Full Class D circuitry, internal ATM mini fuses, status indicators, and an ambient backlit logo. Side-panel controls provide access to gain, low-pass crossover, and bass-boost adjustments. The amplifier measures 7.64 x 3.7 x 1.47 inches (194 x 95 x 37.3 mm).\u003c\/p\u003e\u003cp\u003eMount the amplifier on a solid, ventilated surface away from heat, moisture, vibration, and combustible materials. Cerwin Vega recommends a minimum 8-gauge power and ground connection, with 4-gauge wiring recommended for monoblock amplifiers; use an external fuse close to the vehicle battery and match the speaker load to the amplifier's 2-ohm or 4-ohm mono capability. Begin subwoofer low-pass tuning around 80 to 120 Hz, then set gain conservatively to avoid audible distortion.\u003c\/p\u003e","brand":"CERWIN VEGA","offers":[{"title":"Default Title","offer_id":47970394112163,"sku":"CER-CVPM10001D","price":112.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/61zVwmHbrtL.jpg?v=1786152481"},{"product_id":"gravity-gbr250-4d-true-360-watt-rms-micro-ultra-compact-digital-4-channel-full-range-amplifier-with-rca-stereo-input-perfect-for-motorcycle-rv-atv-car-boat-marine","title":"Gravity GBR250-4D Compact 4-Channel Digital Amplifier","description":"\u003cp\u003eThe Gravity GBR250-4D is a micro ultra-compact, four-channel full-range digital amplifier for adding external power where installation space is limited. It is rated for 360 watts RMS and uses RCA stereo inputs for connection with compatible source units. Its small footprint makes it a practical option for compact mobile-audio installations.\u003c\/p\u003e\u003cp\u003eThis amplifier is designed for stereo front-and-rear speaker systems in cars, motorcycles, RVs, ATVs, boats, and similar applications. Four channels allow it to power separate front and rear speaker pairs from one amplifier. It can also be configured in bridged operation for a two-channel setup when the connected speakers meet the stated load requirement.\u003c\/p\u003e\u003cp\u003eThe GBR250-4D is stable at 2-ohm and 4-ohm loads, providing 90 watts RMS per channel at 2 ohms. In bridged operation, it is rated at 180 watts RMS by two channels at 4 ohms. These published ratings help match the amplifier to compatible speaker wiring and power-handling needs.\u003c\/p\u003e\u003cp\u003eSelectable low-pass, full-range, and high-pass crossover modes provide basic system-tuning flexibility. High-pass filtering can be used for speaker channels, while low-pass filtering supports installations that require a lower-frequency signal path. Full-range mode leaves crossover selection open for systems using external processing or speaker-specific filtering.\u003c\/p\u003e\u003cp\u003eMeasuring 1.5 x 3.25 x 7.5 inches, the GBR250-4D is intended for installations where a conventional full-size amplifier may be difficult to place. It uses a surface-mount installation format and can fit into compact custom audio layouts. RCA stereo input compatibility makes it suitable for systems built around a source unit with RCA preamp outputs.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Design:\u003c\/strong\u003e Powers front and rear speaker channels from one compact amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e360 Watts RMS:\u003c\/strong\u003e Provides the published total continuous power rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable:\u003c\/strong\u003e Supports compatible 2-ohm speaker loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Enables two-channel operation at 4 ohms bridged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA Stereo Input:\u003c\/strong\u003e Connects with compatible RCA-equipped source units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Crossovers:\u003c\/strong\u003e Offers LPF, full-range, and HPF operating modes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe GBR250-4D uses a compact digital amplifier design with a published 1.5 x 3.25 x 7.5-inch size. The available technical information identifies it as a surface-mount amplifier, but does not specify the enclosure material. Its compact form is intended to help accommodate installations with limited available mounting space.\u003c\/p\u003e\u003cp\u003eInstall the amplifier on a secure mounting surface with access for power, ground, speaker wiring, and RCA signal cables. Use the RCA stereo input with a compatible source unit, and select LPF, full-range, or HPF mode to suit the connected channels. Confirm speaker impedance and wiring before use: the amplifier is rated for 90 watts RMS x 4 at 2 ohms or 180 watts RMS x 2 at 4 ohms bridged.\u003c\/p\u003e","brand":"GRAVITY","offers":[{"title":"Default Title","offer_id":47970400305315,"sku":"GBR250-4D","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/71VTdQj0i1L.jpg?v=1786152788"},{"product_id":"hertz-veneziav4c","title":"Hertz Venezia V4C 4-Channel Compact Marine Amplifier","description":"\u003cp\u003eThe Hertz Venezia V4C is a compact four-channel marine amplifier for upgrading boat audio systems where installation space is limited. It can power four full-range marine speakers, or it can be configured for three- or two-channel operation with bridged outputs. Its 2-ohm-stable channels help support higher-output speaker layouts without requiring a large amplifier chassis.\u003c\/p\u003e\u003cp\u003eAt 14.4 volts, the Venezia V4C delivers 110 watts RMS per channel at 4 ohms or 190 watts RMS per channel at 2 ohms. Bridged channel pairs deliver 380 watts RMS at 4 ohms, allowing the amplifier to run a subwoofer or a dual-mono configuration. This flexibility makes it suitable for systems using marine coaxial speakers, a subwoofer, or both.\u003c\/p\u003e\u003cp\u003eHertz Advanced Class D amplification is designed for efficient power delivery and reduced heat generation. The amplifier has a specified 10 Hz to 42 kHz bandwidth and Hi-Res certification, supporting a wide audio range for detailed playback. Balanced fully differential inputs are used to help reject electromagnetic interference in electrically demanding marine installations.\u003c\/p\u003e\u003cp\u003eThe V4C is engineered for marine use, with an epoxy-coated circuit board, salt-fog testing, and IPX2 certification when mounted vertically with its connections facing downward. Its die-cast aluminum chassis uses fanless convection cooling rather than an onboard fan. Short-circuit, overload, and thermal safeguards reset automatically after protection events.\u003c\/p\u003e\u003cp\u003eFor system building, the amplifier provides independent front and rear filter sections with full-range, high-pass, and low-pass settings. A full-range front pre-out can feed an additional amplifier, while mono input options support simplified source connections. Safe-Lock plug-and-play input, output, and power connections are intended to make a secure marine installation more straightforward.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Output:\u003c\/strong\u003e Delivers 110 watts RMS x 4 at 4 ohms or 190 watts RMS x 4 at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Provides 380 watts RMS x 2 at 4 ohms for bridged applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Ready Construction:\u003c\/strong\u003e Uses an epoxy-coated PCB and is tested for marine environmental exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX2 Installation Rating:\u003c\/strong\u003e Rated IPX2 when installed vertically with connections facing downward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Crossover Network:\u003c\/strong\u003e Front and rear channels offer full-range, high-pass, and low-pass filtering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Differential Inputs:\u003c\/strong\u003e Helps reduce noise from electromagnetic interference in the audio signal path.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Venezia V4C combines a die-cast aluminum compact chassis with a fanless convection cooling design. A polycarbonate panel protects the built-in filter controls, while the internal electronics use marine-focused corrosion protection. The amplifier weighs 2.62 kg (5.77 lb).\u003c\/p\u003e\u003cp\u003eUse the V4C with a 9 to 16 VDC electrical system and a source unit or processor with preamp outputs. It accepts 2-ohm loads in four-channel operation, while bridged operation requires 4-ohm loads. Mount it vertically with the connections facing down when using its IPX2-rated installation orientation, and configure the front and rear filters to suit full-range speakers, a bridged subwoofer, or a mixed speaker-and-subwoofer system.\u003c\/p\u003e","brand":"HERTZ","offers":[{"title":"Default Title","offer_id":47970407055523,"sku":"VENEZIAV4C","price":424.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/61k6nXghxYL.jpg?v=1786153117"},{"product_id":"hertz-veneziav5c","title":"Hertz Venezia V5C 5-Channel Compact Marine Amplifier","description":"\u003cp\u003eThe Hertz Venezia V5C is a compact five-channel marine amplifier designed to power four full-range speakers and a subwoofer from one chassis. It provides a practical solution for boats where installation space is limited but a complete, amplified audio system is desired. Its five-channel layout supports a balanced system with dedicated power for cabin, cockpit, or tower speakers plus bass reinforcement.\u003c\/p\u003e\u003cp\u003eAt 14.4V, the Venezia V5C delivers 80 watts RMS to each of four channels at 4 ohms and 330 watts RMS to the subwoofer channel at 4 ohms. For compatible 2-ohm loads, output rises to 115 watts RMS per full-range channel and 550 watts RMS for the subwoofer channel. The amplifier can also be configured in a three-channel arrangement using bridged full-range channels.\u003c\/p\u003e\u003cp\u003eHertz Advanced Class D technology is used to provide efficient amplification in a compact marine-ready format. The amplifier has a 10 Hz to 42 kHz bandwidth and is Hi-Res certified, supporting detailed playback from compatible source components and speakers. Balanced fully-differential input circuitry is designed to help reject electromagnetic interference in demanding onboard electrical environments.\u003c\/p\u003e\u003cp\u003eThe Venezia V5C is engineered and tested for marine use, including exposure to UV, salt fog, vibration, temperature changes, and thermal shock. Its IPX2 rating applies when the amplifier is mounted vertically with its connections facing downward. Corrosion-resistant circuit boards and a fanless cooling design support installation in appropriately protected marine locations.\u003c\/p\u003e\u003cp\u003eBuilt-in crossover controls allow the amplifier to be matched to full-range speakers, component systems, and a subwoofer without requiring an external crossover. The A and B channels offer selectable filter arrangements, while the subwoofer section includes low-pass, subsonic, phase, and bass-boost adjustments. Safe-Lock input, output, and power connections help create a secure installation, while automatic short-circuit, overload, and thermal protection helps safeguard the amplifier during operation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive-Channel Configuration:\u003c\/strong\u003e Powers four speakers and one subwoofer from a single amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Class D Design:\u003c\/strong\u003e Delivers efficient power with reduced heat generation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Ready Construction:\u003c\/strong\u003e Tested for UV, salt fog, vibration, and temperature exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX2 Certification:\u003c\/strong\u003e Supports water-drip resistance when vertically mounted correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Crossovers:\u003c\/strong\u003e Provides adjustable filtering for speaker and subwoofer tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Protection Circuitry:\u003c\/strong\u003e Resets after short-circuit, overload, or thermal protection events.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Venezia V5C uses a compact die-cast aluminum chassis with an integrated fanless convection cooling system. Its marine-focused construction includes corrosion-resistant, coated circuit boards and a polycarbonate cover protecting the onboard control section. Balanced fully-differential inputs and Safe-Lock connections are intended to support clean signal transfer and durable wiring connections.\u003c\/p\u003e\u003cp\u003eInstall the amplifier in a ventilated, protected location and use the vertical mounting orientation with connections facing down when IPX2-rated installation is required. It accepts dedicated RCA preamp inputs for channels A, B, and subwoofer, so pair it with a source unit or processor that provides appropriate preamp outputs. Match connected speakers to the stated impedance limits, configure the onboard filters for the system layout, and use bridged channels only in the specified three-channel configuration.\u003c\/p\u003e","brand":"HERTZ","offers":[{"title":"Default Title","offer_id":47970407121059,"sku":"VENEZIAV5C","price":397.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/61gEiMJL9fL.jpg?v=1786153120"},{"product_id":"hifonics-hcm1200-1d","title":"Hifonics HCM-1200.1D Colossus Mini Mono Amplifier","description":"\u003cp\u003eThe Hifonics HCM-1200.1D Colossus Mini is a compact mono Class-D amplifier designed for adding amplified bass or powering a single-channel audio zone where installation space is limited. It is rated to deliver 300 watts RMS at 4 ohms, 600 watts RMS at 2 ohms, and 1,200 watts RMS at 1 ohm. Its small chassis makes it a practical option for cars, UTVs, motorcycles, and other installations that need a dedicated amplifier without a large footprint.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for systems using a compatible subwoofer load, with stable operation down to 1 ohm. Its mono configuration concentrates available output into one channel, making it suitable for a subwoofer system or other single-channel speaker application. The full-range Class-D platform also provides flexibility for compatible pro-style drivers when the system is configured appropriately.\u003c\/p\u003e\u003cp\u003eVariable crossover controls allow the amplifier to be integrated with a wider audio system. The low-pass crossover is adjustable from 50 to 10,000 Hz, while the high-pass crossover is adjustable from 15 to 1,000 Hz. A variable bass boost control provides up to 12 dB of adjustment, and the included wired remote allows bass-level changes from the driver’s seat.\u003c\/p\u003e\u003cp\u003eThe HCM-1200.1D uses Ultra-Fi MOSFET output devices, an air-core transformer power supply, and multi-layer printed circuit boards with surface-mount components. Its mass-loaded extruded aluminum heat sink is designed to manage heat without fan cooling. Triple protection circuitry monitors over-voltage, under-voltage, short-circuit, and thermal conditions.\u003c\/p\u003e\u003cp\u003eFor a system upgrade, the amplifier accepts low-level RCA input signals and includes one pair of preamp outputs for signal pass-through to another amplifier. Nickel-plated RCA jacks and secure molded connection terminals support durable system connections. A delayed turn-on circuit helps reduce turn-on and turn-off noise when used with compatible source units.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Ohm Stable Mono Output:\u003c\/strong\u003e Delivers up to 1,200 watts RMS through one channel at a 1-ohm load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Range Class-D Platform:\u003c\/strong\u003e Supports subwoofer use and compatible full-range or pro-style driver applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Crossovers:\u003c\/strong\u003e Variable high-pass and low-pass filters help match the amplifier to the rest of the system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Lets the listener adjust bass level without reaching the amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Protection Circuits:\u003c\/strong\u003e Provides over\/under-voltage, short-circuit, and thermal protection monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Aluminum Heat Sink:\u003c\/strong\u003e Uses an extruded aluminum chassis for thermal management without a fan.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Colossus Mini uses a mass-loaded extruded aluminum heat sink, Ultra-Fi MOSFETs, an air-core transformer power supply, and multi-layer PCB construction. Nickel-plated RCA inputs help resist corrosion, while CNC-machined aluminum logo badges and molded connection terminals give the amplifier a clean installation-oriented finish. Power and protection status are indicated by the included bass remote’s LED.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a secure surface with adequate ventilation and do not mount it upside down. Use RCA-level signal inputs, connect a properly matched speaker load of no less than 1 ohm, and use an external 100A fuse on the power cable within 18 inches of the battery connection. Hifonics installation guidance recommends 1\/0 AWG amplifier wiring for this model; set gain and crossover controls carefully to suit the source unit and connected speakers.\u003c\/p\u003e","brand":"HIFONICS","offers":[{"title":"Default Title","offer_id":47970408988835,"sku":"HCM1200-1D","price":128.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/61W6YrPLaIL.jpg?v=1786153223"},{"product_id":"hifonics-zd-2550-1d","title":"Hifonics ZD-2550.1D Compact Mono Class D Amplifier","description":"\u003cp\u003eThe Hifonics ZD-2550.1D is a compact mono Class D mobile amplifier designed for subwoofer-focused car audio systems. It concentrates its output into one channel, making it suited to powering a properly matched subwoofer system rather than a full-range speaker array. Its adjustable low-pass crossover, subsonic filter, and bass controls help tailor bass output to the vehicle and enclosure.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for listeners building or upgrading a dedicated low-frequency section in a universal-fit vehicle audio system. It offers manufacturer-listed output ratings at 1, 2, and 4 ohms, allowing installers to select a compatible subwoofer wiring configuration. The mono-only layout keeps the setup focused on bass reproduction and simplified subwoofer amplification.\u003c\/p\u003e\u003cp\u003eA PWM MOSFET power supply and Class D topology support high-output operation in a compact chassis. Hifonics also specifies a Simpatico dual-coil pulse-width-modulated power-supply design intended to help maintain voltage through the output devices. The aluminum heat sink is designed to assist with heat dissipation during operation.\u003c\/p\u003e\u003cp\u003eSignal and tuning connections are arranged for practical installation, with nickel-plated RCA inputs and molded, angled power, ground, and speaker terminals. The amplifier accepts speaker-level audio inputs as well as RCA signal input. A built-in bass control and wired bass remote provide convenient adjustment of low-frequency output.\u003c\/p\u003e\u003cp\u003eFor systems without a conventional amplifier remote lead, DC Signal Sense can switch the amplifier on when it detects a signal at the RCA inputs. Illuminated diagnostic indicators monitor overload and speaker-short protection conditions. With its compact item dimensions, the ZD-2550.1D can fit installations where dedicated subwoofer amplification is needed without using a large amplifier footprint.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMono Class D Design:\u003c\/strong\u003e Delivers a single amplified channel for subwoofer-oriented systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2550-Watt Maximum Rating:\u003c\/strong\u003e Manufacturer-listed maximum output is 2550 watts at 1 ohm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Filter:\u003c\/strong\u003e Adjusts the low-pass crossover from 50Hz to 250Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubsonic Filter:\u003c\/strong\u003e Adjustable 15Hz to 40Hz filtering supports enclosure-specific tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Signal Sense:\u003c\/strong\u003e Can turn on from an RCA input signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Included remote provides convenient bass-level adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe ZD-2550.1D uses an aluminum heat sink, a black finish, nickel-plated RCA inputs, and high-temperature impact-resistant connection hardware. Its power, ground, and speaker terminals are housed in a molded, angled terminal arrangement to support organized wiring access. LED diagnostic circuitry provides illuminated indication for overload and speaker-short protection.\u003c\/p\u003e\u003cp\u003eMatch the connected subwoofer load to one of the amplifier's listed 1-, 2-, or 4-ohm output ratings, and use the onboard low-pass, subsonic, gain, and bass-boost adjustments during setup. The amplifier uses 4 AWG 12V and ground terminals, 12 AWG speaker terminals, and an external 125A fuse specification. It can be installed using RCA or speaker-level audio inputs; DC Signal Sense is available when using RCA signal input.\u003c\/p\u003e","brand":"HIFONICS","offers":[{"title":"Default Title","offer_id":47970409480355,"sku":"ZD-2550-1D","price":143.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/714T8spZRSL.jpg?v=1786153253"},{"product_id":"jvc-ks-dr2004d","title":"JVC KS-DR2004D 4-Channel Compact Digital Amplifier","description":"\u003cp\u003eThe JVC KS-DR2004D is a compact four-channel digital amplifier designed to add power to car, marine, UTV, and motorcycle audio systems. It provides 50 watts RMS to each of four channels at 4 ohms, making it suited to driving front and rear speakers from an aftermarket or factory audio source. Its compact sealed design helps make installation practical where conventional amplifiers may be difficult to place.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for systems exposed to water, dust, vibration, and changing outdoor conditions. It is rated IP66 and IP67 for water and dust protection, and its sealed cast-aluminum chassis uses stainless-steel screws. A drain-tunnel structure creates clearance beneath the amplifier to help reduce saltwater and sand buildup at the mounting surface.\u003c\/p\u003e\u003cp\u003eFor audio performance, the KS-DR2004D supports a 10 Hz to 35 kHz frequency response and adjustable high-pass and low-pass filters for each channel pair. The filters are variable from 50 Hz to 200 Hz with a 12 dB-per-octave slope, allowing the amplifier to be set up for full-range speakers or more focused frequency duties. Input sensitivity is adjustable across a 0.2V to 5.0V RCA range for integration with compatible source units.\u003c\/p\u003e\u003cp\u003eThe amplifier can be connected through RCA inputs or speaker-level input wiring for systems using a factory-installed head unit without RCA preouts. Its input-mode and output-mode controls support different system layouts, including four-channel operation and bridged two-channel operation. In bridged mode, it is rated to deliver 150 watts by two channels into 4-ohm loads.\u003c\/p\u003e\u003cp\u003eJVC equips the KS-DR2004D with Polymer Multi-Layer Capacitors and magnetically shielded output coils to support controlled signal handling and reduce radiated noise. The amplifier also includes a protection function for conditions such as speaker-wire shorts, low speaker impedance, DC at the speaker output, and high internal temperature. It is a practical option for powering a compact multi-speaker system in vehicles and powersports applications that need a sealed amplifier chassis.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Power:\u003c\/strong\u003e Supplies 50W RMS x 4 at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridged Capability:\u003c\/strong\u003e Supports 150W x 2 into 4-ohm loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP66\/IP67 Protection:\u003c\/strong\u003e Built for water and dust exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Adjustable HPF and LPF run from 50Hz to 200Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Radio Compatibility:\u003c\/strong\u003e Accepts RCA or speaker-level input signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed Aluminum Chassis:\u003c\/strong\u003e Uses corrosion-resistant construction and stainless-steel screws.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe KS-DR2004D uses a sealed cast-aluminum chassis with stainless-steel screws, a die-cast mounting section, and a drain-tunnel structure beneath the amplifier. JVC specifies IP66 and IP67 water- and dust-protection ratings, ASTM B117 salt-spray corrosion testing, and a 3-axis multi-frequency vibration test. Its 198 x 48.5 x 104 mm enclosure is designed for compact mounting locations.\u003c\/p\u003e\u003cp\u003eInstallation requires a 12V negative-ground electrical system, battery and ground wiring, speaker wiring, and either RCA or speaker-level signal connections. The manual shows 10 AWG battery and ground wiring, a 16 AWG power-control wire for RCA-input installations, and a 40A fuse; use a protective fuse near the battery. Mount the amplifier securely in a location with ventilation, keep the dressing panel properly installed to maintain its protection rating, and have mounting and wiring performed by an experienced installer when needed.\u003c\/p\u003e","brand":"JVC","offers":[{"title":"Default Title","offer_id":47970420228259,"sku":"KS-DR2004D","price":182.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/71dMbss4OuL_7e68ce36-0ce7-469f-b0f9-25ff928e4787.jpg?v=1786153615"},{"product_id":"kenwood-kac-m1814","title":"Kenwood KAC-M1814 Compact 4-Channel Marine Digital Amplifier","description":"\u003cp\u003eThe Kenwood KAC-M1814 is a compact four-channel Class D amplifier designed to add clean, controlled power to car, marine, and motorsports audio systems. It is a practical solution for systems that need more output than a receiver's built-in amplifier can provide while conserving installation space. Its small footprint makes it suitable for locations where a conventional full-size amplifier may be difficult to mount.\u003c\/p\u003e\u003cp\u003eWith 45 watts RMS per channel, the KAC-M1814 can power four compatible speakers or be configured in bridged two-channel operation. It supports 2-ohm stereo loads and 4- to 8-ohm bridged loads, allowing it to work with a range of speaker layouts. Variable high-pass and low-pass filters help tailor the signal for full-range speakers or selected system configurations.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for listeners building a compact upgrade in a vehicle, boat, or powersports application. Speaker-level input with signal-sensing turn-on supports integration with receivers that do not provide dedicated RCA preamp outputs. RCA inputs are also available for use with aftermarket receivers and other line-level sources.\u003c\/p\u003e\u003cp\u003eKenwood uses a Class D digital amplifier platform with a Power MOS-FET switching power supply to keep the chassis compact. Separate preamp and power-amp sections are designed to help reduce radiation noise. Independent A and B channel gain controls and separately adjustable crossover sections provide useful setup flexibility.\u003c\/p\u003e\u003cp\u003eFor outdoor-oriented installations, the KAC-M1814 includes conformal coating to help protect the circuit board from rust and vibration-related exposure. Its covered connectors are designed to help keep out water and dust. The amplifier fits neatly into a system using four speakers, or it can be used bridged for two compatible channels where higher per-channel output is needed.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Amplification:\u003c\/strong\u003e Adds 45 watts RMS to each of four channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Output:\u003c\/strong\u003e Supports two-channel bridged operation at compatible 4-ohm loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker-Level Input:\u003c\/strong\u003e Connects to systems without RCA preamp outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-Sensing Turn-On:\u003c\/strong\u003e Powers on when an input signal is detected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Adjustable high-pass and low-pass filtering from 50 to 200 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConformal-Coated Circuit Board:\u003c\/strong\u003e Helps protect the electronics in marine and motorsports use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe KAC-M1814 uses a compact aluminum heat-sink chassis with a 145 x 45 x 99 mm enclosure size. Its Class D design, covered connector arrangement, and conformal-coated circuit board suit installations where space and environmental exposure are considerations. The amplifier also uses a Power MOS-FET switching power supply and separate preamp and power-amp sections.\u003c\/p\u003e\u003cp\u003eMount the amplifier in a secure location with appropriate ventilation and connect it to a 12-volt DC vehicle electrical system. It can accept RCA line-level inputs or speaker-level inputs, while its included DC cable and RCA cables support basic installation connections. Set the A and B channel gain and crossover controls to match the connected speakers and chosen system layout.\u003c\/p\u003e","brand":"KENWOOD","offers":[{"title":"Default Title","offer_id":47970421670051,"sku":"KAC-M1814","price":113.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/71FANe4bUgL.jpg?v=1786153700"},{"product_id":"rockford-fosgate-pbr300x1","title":"Rockford Fosgate PBR300X1 Compact Mono Subwoofer Amplifier","description":"\u003cp\u003eThe Rockford Fosgate Punch PBR300X1 is a compact mono amplifier made to add subwoofer power where traditional amplifier space is limited. It delivers up to 300 watts RMS to a 1-ohm load while measuring just 1.53 by 4.25 by 6.75 inches. Its low-pass-only design makes it suited to focused bass-system upgrades.\u003c\/p\u003e\u003cp\u003eThis amplifier is a practical fit for cars, trucks, motorcycles, ATVs, hybrids, and other installations where mounting room is at a premium. It supports both RCA low-level and speaker-level input connections, allowing it to work with many aftermarket and factory audio systems. A selectable high\/low input mode helps match the installation method to the source unit.\u003c\/p\u003e\u003cp\u003eThe PBR300X1 provides 75 watts RMS at 4 ohms, 150 watts RMS at 2 ohms, and 300 watts RMS at 1 ohm. Its variable low-pass crossover lets the installer set the upper bass cutoff from 35 Hz to 250 Hz. This helps blend a connected subwoofer with the vehicle's main speakers.\u003c\/p\u003e\u003cp\u003eRockford Fosgate Class BR Boosted Rail technology is used to deliver its output from a very small chassis. The amplifier uses a MOSFET output stage, an extruded aluminum heatsink, and convection cooling. Power\/Protect and BRT status LEDs provide visible operating feedback from the top-mounted control area.\u003c\/p\u003e\u003cp\u003eFor factory-radio integration, the amplifier includes speaker-level inputs and a variable 4 to 6 volt DC-offset turn-on adjustment. An optional Rockford Fosgate PEQ remote can control the amplifier's Punch EQ bass boost circuit. With appropriate wiring, fusing, and a correctly matched subwoofer load, the PBR300X1 can serve as the bass amplifier in a compact system.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Mono Design:\u003c\/strong\u003e Fits in space-constrained vehicle audio installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Ohm Stable Power:\u003c\/strong\u003e Delivers 300 watts RMS at 1 ohm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass BR Topology:\u003c\/strong\u003e Supports compact boosted-rail amplifier engineering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Inputs:\u003c\/strong\u003e Connects to factory speaker-output signals when needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Filter:\u003c\/strong\u003e Adjusts bass crossover from 35 Hz to 250 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional PEQ Remote:\u003c\/strong\u003e Enables remote control of Punch EQ bass boost.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe PBR300X1 uses an extruded aluminum heatsink to dissipate heat, with convection cooling rather than a fan. Its small enclosure measures 1.53 inches high, 4.25 inches wide, and 6.75 inches long. Top-mounted status LEDs indicate power\/protection status and Boosted Rail operation.\u003c\/p\u003e\u003cp\u003eUse a subwoofer wiring configuration that presents no lower than a 1-ohm load, and select the matching power rating when choosing a subwoofer. Rockford Fosgate recommends 10 AWG wire for the amplifier's power and ground connections and specifies a 30A external battery fuse. Mount it outside the engine compartment with adequate ventilation; installations under a seat require at least 1 inch of air gap around the heatsink.\u003c\/p\u003e","brand":"ROCKFORD FOSGATE","offers":[{"title":"Default Title","offer_id":47970450571427,"sku":"PBR300X1","price":191.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/71TdBpJfxrL_845934e0-c01c-48f4-bccf-6f3659c72de8.jpg?v=1786154658"},{"product_id":"rockford-fosgate-pbr400x4d","title":"Rockford Fosgate PBR400X4D Compact 4-Channel Amplifier","description":"\u003cp\u003eThe Rockford Fosgate Punch PBR400X4D is a compact four-channel car audio amplifier for systems that need added speaker power where installation space is limited. It delivers full-range Class D amplification for front-and-rear speakers, component systems, or other four-channel applications. Its compact chassis is well suited to cars, trucks, motorcycles, ATVs, and similar vehicles where a conventional amplifier may be difficult to place.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the PBR400X4D provides 50 watts RMS to each of four channels, with up to 100 watts RMS per channel at 2 ohms. It can also be bridged to run two 4-ohm channels at 200 watts RMS each. This flexibility lets it support a straightforward four-speaker upgrade or a higher-output two-channel configuration when paired with compatible speakers.\u003c\/p\u003e\u003cp\u003eThe amplifier uses a full-range Class D design with Rockford Fosgate Boosted Rail Technology. This approach is designed to provide its rated output in a small enclosure while operating from a 9 to 16 VDC vehicle electrical system. The result is a practical option for compact systems that need efficient amplification without the larger footprint of many conventional multi-channel amplifiers.\u003c\/p\u003e\u003cp\u003eIts differential signal inputs accept either low-level RCA signals or high-level speaker signals from a source unit. When high-level input is used, the amplifier supports automatic turn-on behavior, which can simplify integration with many factory radios. A 2-channel\/4-channel input selector also allows four amplified outputs to be operated from only the front input pair when needed.\u003c\/p\u003e\u003cp\u003eSelectable fixed crossovers help tailor the amplifier to the speakers and system layout. Each channel section can be set for low-pass, all-pass, 60 Hz high-pass, or 80 Hz high-pass operation. Front and rear gain controls, along with input and output clip indicators, provide useful setup references when matching the amplifier to the source unit and speakers.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Power:\u003c\/strong\u003e Delivers 50 watts RMS to each channel at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Outputs:\u003c\/strong\u003e Provides up to 100 watts RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Runs as two 200-watt RMS channels at 4 ohms bridged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Chassis:\u003c\/strong\u003e Measures approximately 6.8 by 4.3 by 1.5 inches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Signal Inputs:\u003c\/strong\u003e Accepts RCA or speaker-level source signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Crossovers:\u003c\/strong\u003e Offers LP, all-pass, 60 Hz HP, and 80 Hz HP settings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe PBR400X4D uses a compact metal amplifier chassis with integrated connection harnesses rather than large conventional terminal blocks. Its design includes separate front and rear gain controls, clip-status indicators, crossover selectors, and power\/protection indication. The small format helps accommodate installations with restricted mounting space while still providing four amplified channels.\u003c\/p\u003e\u003cp\u003eFor installation, connect compatible 2-ohm or 4-ohm speakers to the four outputs, or bridge channel pairs only with 4-ohm speaker loads. The amplifier accepts RCA-level input through its signal harnesses, while the same input arrangement can be adapted for high-level speaker input; high-level operation activates its auto turn-on feature. Use appropriately sized power wiring, install the specified external fuse near the battery, provide a clean chassis ground, and leave adequate ventilation around the amplifier.\u003c\/p\u003e","brand":"ROCKFORD FOSGATE","offers":[{"title":"Default Title","offer_id":47970451947683,"sku":"PBR400X4D","price":243.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/717JKXiU76L_fc65fdfe-1023-48ab-8c90-3f1a9aa053a1.jpg?v=1786154662"},{"product_id":"audiobank-monoblock-7000-watts-amp-class-d-1ohm-car-audio-stereo-amplifier-remote-turn-on-off-circuit-heavy-duty-aluminium-alloy-heatsink-power-and-protection-indicator-p7001","title":"Audiobank P7000-1D Monoblock Car Audio Amplifier","description":"\u003cp\u003eThe Audiobank P7000-1D is a single-channel car audio amplifier intended to power a dedicated subwoofer system. It gives installers a separate bass amplification stage rather than relying on a head unit or multi-channel amplifier for low-frequency output. Its listed maximum output reaches 7,000 watts at a 1-ohm load.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to vehicle audio systems focused on adding or upgrading subwoofer output. It supports 1-, 2-, and 4-ohm speaker-load configurations, allowing compatibility with appropriately wired subwoofers. The monoblock layout keeps the amplifier’s role focused on the low-frequency portion of the system.\u003c\/p\u003e\u003cp\u003eA variable low-pass crossover from 40 to 180 Hz helps limit the amplifier’s output to bass frequencies. The listed 17 Hz to 180 Hz frequency response is designed around subwoofer applications rather than full-range speaker duty. Variable gain and bass-boost controls provide adjustment during system setup.\u003c\/p\u003e\u003cp\u003eThe P7000-1D uses a MOSFET pulse-width-modulated power supply and a heavy-duty aluminum-alloy heatsink. A soft turn-on circuit is specified to help manage startup behavior. LED power and protection indicators provide visible operating-status feedback.\u003c\/p\u003e\u003cp\u003eLine-level RCA and speaker-level inputs support connection to a variety of factory or aftermarket source units. A remote subwoofer level control is specified for convenient level adjustment from the cabin. Thermal and speaker-short protection circuitry add safeguards for everyday vehicle-audio use.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonoblock Configuration:\u003c\/strong\u003e Provides one dedicated amplifier channel for a subwoofer system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Ohm Stability:\u003c\/strong\u003e Supports compatible subwoofer wiring at 1, 2, or 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Crossover:\u003c\/strong\u003e Adjusts the upper bass cutoff from 40 to 180 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Level Control:\u003c\/strong\u003e Allows subwoofer-level adjustment from the listening position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Input Options:\u003c\/strong\u003e Accepts both line-level RCA and speaker-level signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Monitoring:\u003c\/strong\u003e Includes thermal and speaker-short protection circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe amplifier uses a heavy-duty aluminum-alloy heatsink to support heat management in a vehicle installation. Its MOSFET PWM power supply, soft turn-on circuit, and status LEDs are integrated into the amplifier design. Three onboard 30A fuses provide circuit protection.\u003c\/p\u003e\u003cp\u003eMount the amplifier to a solid surface with ventilation around the heatsink and away from moisture or direct heat. Match the connected subwoofer wiring to a supported total impedance, and set gain, crossover, and bass boost conservatively during tuning. Use the line-level or speaker-level input that matches the source unit, then connect the remote turn-on lead to a switched amplifier-control output.\u003c\/p\u003e","brand":"AUDIOBANK","offers":[{"title":"Default Title","offer_id":47991248847011,"sku":"P7000-1D","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/71qpnVFf7QL.jpg?v=1786667917"},{"product_id":"audiobank-monoblock-8000-watts-amp-class-d-1ohm-car-audio-stereo-amplifier-remote-turn-on-off-circuit-heavy-duty-aluminium-alloy-heatsink-power-and-protection-indicator-p8001","title":"Audiobank P8000-1D Monoblock Car Audio Amplifier","description":"\u003cp\u003eThe Audiobank P8000-1D is a single-channel car audio amplifier designed for a dedicated subwoofer or bass channel in a 12-volt vehicle audio system. It accepts compatible subwoofer wiring down to a 1-ohm load and provides bass-focused controls for system tuning. This makes it suited to upgrades where full-range speakers are powered separately and the amplifier is assigned to low-frequency reproduction.\u003c\/p\u003e\u003cp\u003ePublished output figures are maximum-power ratings of 8,000 watts at 1 ohm, 5,000 watts at 2 ohms, and 4,000 watts at 4 ohms. An RMS power specification is not confirmed in the available product information, so subwoofer selection should not be based on the maximum ratings alone. Confirm the final speaker impedance, subwoofer RMS handling, and vehicle electrical capacity before installation.\u003c\/p\u003e\u003cp\u003eThe P8000-1D provides a continuously variable low-pass crossover from 40 to 180 Hz to keep its output focused on lower frequencies. Its variable bass boost offers adjustment from 0 to +12 dB, while the variable input gain helps match amplifier sensitivity to the source unit. A remote subwoofer level control is specified for convenient adjustment of bass output from the driver’s seat.\u003c\/p\u003e\u003cp\u003eFor source compatibility, this monoblock amplifier is specified with line-level and speaker-level inputs. That allows connection to many aftermarket receivers as well as systems that need to use speaker-output signal. The listed frequency response is 17 to 180 Hz, supporting its role as a bass-channel amplifier rather than a full-range multi-channel design.\u003c\/p\u003e\u003cp\u003eThe amplifier uses a MOSFET pulse-width-modulated power supply and is marketed as a Class D monoblock design. Soft turn-on, remote turn-on\/turn-off capability, and LED power and protection indicators support normal vehicle-audio operation. Thermal and speaker-short protection circuitry are specified to help protect the amplifier when an operating fault occurs.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Ohm Stable Operation:\u003c\/strong\u003e Supports compatible subwoofer wiring configurations down to a 1-ohm load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Crossover:\u003c\/strong\u003e Adjusts the bass passband from 40 to 180 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Bass Boost:\u003c\/strong\u003e Provides 0 to +12 dB of low-frequency adjustment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Bass Level Control:\u003c\/strong\u003e Lets the driver adjust subwoofer output level conveniently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine And Speaker-Level Inputs:\u003c\/strong\u003e Supports connection with a range of factory or aftermarket sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Monitoring:\u003c\/strong\u003e Thermal and speaker-short protection work with power and protection LEDs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe P8000-1D uses a heavy-duty aluminum-alloy heatsink intended to help dissipate operating heat. It also features nickel-plated RCA connections, LED status indicators, and three onboard 40-amp fuses. The compact surface-mount chassis is listed at 14 x 9 x 4 inches.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely on a stable surface with clearance around the heatsink and away from moisture or excessive heat. Use appropriately fused power wiring, a solid chassis-ground connection, a remote turn-on lead, and speaker wiring that produces no less than the rated 1-ohm minimum load. Set gain, crossover, and bass boost conservatively during initial setup, then verify that the system remains free of distortion and protection faults.\u003c\/p\u003e","brand":"AUDIOBANK","offers":[{"title":"Default Title","offer_id":47991248912547,"sku":"P8000-1D","price":109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/711slXsYZ6L.jpg?v=1786667922"},{"product_id":"jvc-ks-dr1004d","title":"JVC KS-DR1004D Compact 4-Channel Class D Amplifier","description":"\u003cp\u003eThe JVC KS-DR1004D is a compact four-channel Class D amplifier designed to add external power where space is limited. It is suited to compact cars, motorcycles, UTVs, and marine or motorsports audio installations. With four amplified channels, it can power a full speaker system or be configured for bridged two-channel operation.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the KS-DR1004D delivers 45 watts RMS to each of four channels across 20 Hz to 20 kHz. This makes it a practical match for compatible full-range speakers that benefit from cleaner, dedicated amplifier power. It also supports 90 watts RMS x 2 when bridged into 4-ohm loads.\u003c\/p\u003e\u003cp\u003eThe amplifier uses Class D design in a small 145 x 45 x 99 mm chassis. Its compact dimensions help when mounting under a seat, in a small storage area, or in other constrained locations. JVC lists the unit at 0.7 kg, supporting installation where added size and weight are considerations.\u003c\/p\u003e\u003cp\u003eJVC applies conformal coating to the main circuit boards for added protection against moisture and condensation exposure. Separate pre-amplifier and power-amplifier circuit boards are used to reduce radiation noise. A large low-pass-filter coil and adjustable crossover controls support a more tailored system setup.\u003c\/p\u003e\u003cp\u003eThe KS-DR1004D accepts either RCA-level or speaker-level input, making it usable with aftermarket or factory-installed head units. Its signal-sensing turn-on function can activate the amplifier from a high-level input signal, so a separate remote-turn-on connection is not required in that configuration. Use the variable high-pass and low-pass filters to configure speaker channels, a bridged speaker pair, or a two-channel-plus-subwoofer arrangement.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Provides compact external amplification for four speakers or bridged two-channel systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e45W RMS x 4 Output:\u003c\/strong\u003e Delivers rated power at 4 ohms for compatible full-range speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Supports 90W RMS x 2 into 4-ohm loads for higher-power channel pairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable HPF and LPF:\u003c\/strong\u003e Allows 50 to 200 Hz crossover adjustment for each amplifier section.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA and Speaker-Level Inputs:\u003c\/strong\u003e Works with aftermarket RCA outputs or compatible factory speaker outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConformal-Coated PCB:\u003c\/strong\u003e Adds circuit-board protection against moisture and condensation exposure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe KS-DR1004D has a compact chassis measuring 145 x 45 x 99 mm and weighs 0.7 kg. Its main circuit boards use conformal coating, while separate pre-amplifier and power-amplifier board construction is intended to reduce radiation noise. Two protective covers are included for the control panel after setup.\u003c\/p\u003e\u003cp\u003eInstall the amplifier on a secure location with airflow for heat dissipation, away from direct water splash, excessive heat, dust, and direct sunlight. It requires a 12V negative-ground electrical system, proper chassis grounding, and a 15A fuse. For speaker-level installation, the factory head unit output may be up to 50W and the signal-sensing turn-on function can eliminate the need for a power-control wire.\u003c\/p\u003e","brand":"JVC","offers":[{"title":"Default Title","offer_id":47994081247395,"sku":"KS-DR1004D","price":108.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5416\/9507\/files\/818Qw-R_sOL_5a7848ff-438c-4adf-87b5-4c4ecb40502a.jpg?v=1786764576"}],"url":"https:\/\/nsiexport.com\/collections\/compact-amplifiers.oembed","provider":"NSI Export","version":"1.0","type":"link"}