Pioneer GM-D9704 Class-FD 4-Channel Bridgeable Power Amplifier 1600W Max / 130W x 4 RMS @ 4Ω / Wired Bass Boost Knob

The Pioneer GM-D9704 Class-FD 4-channel bridgeable power amplifier is engineered to deliver high-output performance and total thermal stability within a compact chassis design. Whether driving high-power front component speakers, rear parcel tray speakers, or bridged subwoofers, the GM-D9704 provides pure, undistorted RMS power.

Advanced Class-FD Efficiency

Pioneer’s Class-FD amplifier circuit combines high-power output capability with high efficiency. Generating minimal excess heat while reducing current draw on your vehicle’s electrical system, it maintains stable power output under continuous high-volume operation.

Versatile 4/3/2 Channel Configuration

The bridgeable architecture offers maximum installation flexibility. You can configure it to power four full-range speakers, two high-output component drivers, or bridge two channels to deliver up to 400W RMS x 2 to heavy-duty subwoofers or mid-bass arrays.

High-Capacity Block Terminals

Featuring heavy-duty screw-type block terminals for power, ground, and speaker connections, the GM-D9704 ensures secure cable clamping, low electrical resistance, and clean current transfer.

Variable Crossover Crossovers & Bass Boost Remote

Equipped with independent channel gain controls, variable High-Pass Filters (HPF), and Low-Pass Filters (LPF), the amp enables precise frequency filtering. The included wired Bass Boost knob allows on-the-fly sub-bass adjustments right from your dashboard.

PRODUCT SPECIFICATION INDEX

WHY 4-CHANNEL AMPLIFIERS ARE RECOMMENDED FOR FULL-CABIN AUDIO

• Sufficient RMS Power for Aftermarket Speakers: Stock factory stereos and aftermarket head units typically produce only 15W–20W RMS per channel, which starves high-performance aftermarket speakers. A dedicated 4-channel amp unlocks the full dynamic range and punch of your speakers.

• Flexible Cabin Layout Options: A single 4-channel amplifier can comfortably power your front door component speakers on Channels 1 & 2 while bridging Channels 3 & 4 to drive a rear trunk subwoofer or 6″x9″ tray speakers.

• Dramatically Lower Distortion at High Volumes: Amplifiers provide clean headroom, allowing your music to play significantly louder with crystal-clear vocals and tight bass without clipping or distortion

  WHY CHOOSE AYON MOTORS?

  1. 100% Authentic Pioneer Stock: Genuine products verified with official serial numbers and original security packaging.

  2. OEM Plug-and-Play Adapter Rings: Custom vehicle-specific speaker rings that mount perfectly into factory bolt locations—zero body cutting or structural alteration required.

  3. 100% Pure Copper Wiring: Ultra-low resistance high-purity copper wiring for maximum power transfer, clean conductivity, and long-term signal integrity without corrosion.

  4. Professional Cable Clipping & Wire Management: All wiring is secured cleanly with industrial cable clips and tie-mounts to prevent panel rattling, loose movement, or long-term wire fatigue inside door cavities.

  5. OEM-Grade Harness Cloth Taping: Wiring looms are wrapped in automotive TESA cloth tape to absorb noise/vibrations, protect against friction wear, and provide a clean factory look.

  6. Precision Cabin Audio Tuning: Fine-tuned equalizer and soundstage balance tailored specifically to your vehicle’s interior acoustic layout.