Audiobank P1004 4-Channel Car Audio Amplifier

The Audiobank P1004 is a four-channel car audio amplifier for adding dedicated amplification to an aftermarket sound system. It is designed for installations that need separate channels for front and rear speakers or a bridged channel-pair arrangement. This makes it a practical foundation for upgrading beyond the power available from a typical head unit.

The amplifier carries a stated maximum output rating of 1000 watts and supports 2-ohm-stable operation with compatible speaker loads. Its four-channel layout can be used for a conventional full-range speaker system, while its bridgeable design provides an alternative configuration for compatible higher-power applications. Confirm speaker impedance and the amplifier's terminal labeling before wiring a bridged setup.

Class A-B operation gives the P1004 a traditional full-range amplifier architecture for speaker-focused car audio systems. Separate control sections for channel pairs include gain adjustment and selectable high-pass, low-pass, or full-range crossover operation. These controls help tailor the signal sent to compatible full-range speakers or subwoofer applications.

A heavy-duty aluminum-alloy heatsink forms the chassis and helps dissipate heat during operation. The amplifier also uses a soft turn-on circuit and a remote turn-on/turn-off connection for integration with a compatible head unit. Power and protection LEDs provide visible operating-status feedback.

Thermal and speaker short-protection circuitry are included to help protect the amplifier during fault conditions. The P1004 requires a correctly fused battery-power connection, chassis ground, remote lead, signal cables, speakers, and installation hardware appropriate for the vehicle. Secure mounting in a dry, ventilated area and careful gain setup are important parts of a dependable installation.

Key Features

• Four-Channel Layout: Powers up to four separate speaker channels.
• Bridgeable Design: Supports compatible bridged channel-pair configurations.
• 2-Ohm Stability: Accommodates compatible 2-ohm speaker loads.
• Class A-B Operation: Provides traditional full-range amplification architecture.
• Protection Circuitry: Includes thermal and speaker short protection.
• Aluminum-Alloy Heatsink: Helps manage operating heat through passive dissipation.

Design & Installation

The P1004 uses a ribbed, heavy-duty aluminum-alloy heatsink chassis with end-panel connections and mounting tabs. Its connection layout includes power, ground, remote, speaker-output, and RCA signal sections. Power and protection indicators are positioned for quick status checks.

Mount the amplifier securely in a dry location with ventilation around the heatsink, such as a suitable trunk, under-seat, or rear-seat area. Disconnect the vehicle battery before installation, use properly sized and fused power wiring, and keep the ground connection short and secure on clean vehicle metal. Use RCA signal connections from a compatible source unit, match speaker impedance to the selected wiring configuration, and set gains conservatively to avoid distortion.