D4-75 4ch amplifier

Authorized DD Audio Dealers Near You

Show results within of

The D4.75 is a mini chassis amp designed to make space constrained installations a breeze. Don’t be fooled by its small stature; in 4 ohm bridged mode this little powerhouse can produce over 2 x 180Watts.  It also features a conformal-coated PCB for added moisture and dust protection in harsh environments; making it perfect for motorcycles, UTVs, and boats.

All controls and connections are located on one side for ease of installation in motorcycle fairings, dashes, under seats, behind seats or in consoles.


  • Conformal Coated PCB
  • 5-way Protection
  • Variable 12dB/Oct
  • Heavy Duty PCB
  • RCA Signal Pass-through
  • MOSFET Power Supply Amplifier
Test Voltage: 14.4
Channels: 4
Cont Wattage @ 4ohm: 75 x 4 / 180 x 2
Cont Wattage @ 2ohm: 90 x 4
Max Current Wattage Draw – Amps: 40
RCA Input Sensitivity (Volts): 6V ~ 0.2V
RCA Input S/N: > 90dB
THD: < 0.2%
Pass-Through Output: Yes
Remote Subwoofer Control: No (Remote Sold Separately)
Power Wire Gauge – In: 2 x 18
Speaker Wire Gauge – Out: 18
Dimensions (In): 6.2 x 3.9 x 1.7
Dimensions (MM): 160 x 100 x 45
Shipping Weight (Lbs): 2
Price (USD): 315
The D Series Multi-Channel amplifiers are designed to be the best amps on the market for the everyday mobile audio enthusiast looking to power their mids and highs or their entire system. These multi-channel amps feature compact chassis, superb sound quality, reliable circuits, and powerful output sections.


Included in the Box

DD Audio
4025 NW 36th Street
Oklahoma City, OK 73112
(405) 239-2800 | Fax: (405) 239-7100