Audiobank P3001 Monoblock Class AB Car Amplifier

The Audiobank P3001 is a single-channel car audio amplifier designed to power a dedicated subwoofer channel. It is intended for vehicle audio systems that need bass amplification beyond what a head unit can provide. Its monoblock configuration keeps the amplifier focused on low-frequency duties for a subwoofer-based upgrade.

Published power ratings include 550 watts RMS x 1 at 4 ohms and 3,000 watts maximum x 1 at 2 ohms. The amplifier is rated stable to 2 ohms, allowing it to work with compatible 2- or 4-ohm subwoofer wiring configurations. Matching the connected speaker load to the amplifier's stated operating range is important for reliable operation.

The P3001 uses a Class A-B amplifier design and a MOSFET pulse-width-modulated power supply. Its variable gain, low-pass crossover, subsonic filter, bass boost, and phase controls allow the bass channel to be adjusted to suit the subwoofer and the rest of the vehicle system. A wired remote level control provides convenient adjustment of subwoofer output from the cabin.

For system integration, the amplifier supports line-level and speaker-level inputs. This gives it flexibility for use with aftermarket receivers equipped with RCA pre-outs as well as compatible factory-radio installations. The variable low-pass filter helps direct appropriate bass frequencies to the connected subwoofer.

The P3001 is built around a heavy-duty aluminum-alloy heatsink to help manage operating heat. Soft turn-on circuitry is intended to reduce turn-on noise, while thermal and speaker-short protection circuits help protect the amplifier under fault conditions. Power and protection LEDs provide visible operating-status indication.

Key Features

• Monoblock Configuration: One dedicated channel for a subwoofer-focused system.
• 2-Ohm Stability: Supports compatible 2- or 4-ohm speaker loads.
• Variable Low-Pass Filter: Adjusts the upper bass-frequency limit from 50 to 250 Hz.
• Subsonic Filter: Filters very low frequencies from 15 to 50 Hz.
• Wired Remote Level Control: Lets the driver adjust subwoofer level from the cabin.
• Protection Circuitry: Includes thermal and speaker-short protection functions.

Design & Installation

The P3001 has a surface-mount form factor with a heavy-duty aluminum-alloy heatsink. Its published dimensions are 8 x 2 x 12.85 inches, and its listed item weight is approximately 5.65 pounds. The control panel includes gain, crossover, subsonic, bass boost, phase, remote-level, and status-indicator provisions.

Mount the amplifier securely in a dry, ventilated area with clearance around the heatsink. With the vehicle battery disconnected, connect power, ground, remote turn-on, input signal, and speaker wiring according to the installation instructions, then use a subwoofer load of 2 ohms or higher. Set gain, low-pass crossover, subsonic filter, bass boost, and phase conservatively during initial setup, then fine-tune them to blend the subwoofer with the vehicle's main speakers.