This Model Has Been Discontinued


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Unique Audio

8178 Newington Rd, Lorton, VA, USA


Don’t have a DD AUDIO dealer near you? Contact us online or call us at 405-239-2800 to purchase direct.

The C3d 2-channel full range Class AB amplifier is designed to provide the highest fidelity from the most minimal footprint.

It features a compact 6.9” x 13.1” x 2.03″ chassis and is rated at 250 watts x 2 at 2 Ohm. It has plenty of power to drive multiple components in a stereo configuration.  You can also bridge this amp to 4 Ohm mono and get a clean 500 watts x 1 for use with a subwoofer.

For durability, we used a heavy trace double sided PCB, set-screw speaker/power terminals, and panel mount RCAs.

The C3d also features fully adjustable HP/LP/BP crossover networks, and the ability to work with an optional remote gain control.


Test Voltage: 14.4
Input Channel(s): 1
Output Channel(s): 2
Continuous Wattage @4ohm: 150 x 2 / 500 x 1
Continuous Wattage @2ohm: 250 x 2
Max Current Draw (Amps): 60
RCA Input Voltage Sensitivity: 8 - 0.25
RCA Input S/N: >100dB
THD: <0.2%
Pass Thru Output: Yes
Remote Control: Remote Available, Sold Separately
Power Wire Gauge: 4
Speaker Wire Gauge: 10
Dimensions (Inches): 13.1 x 6.9 x 2.03
Dimensions (MM): 333 x 175 x 52.5
Shipping Weight (Lbs): 9
Price (USD): 359 each

The C Series amps are perfect for driving DD Audio mid and high speakers.  Their Class AB circuitry offers a warm dynamic sound at an incredible value. The new chassis design features a single side control panel that gives the C Series an elegant aesthetic and while making cable management and audio adjustments easy for quick clean installations. Other features include band-passable crossover networks, durable internal components, set screw terminals and engraved logos. For additional control, if you’re using a C Series as a sub amp an optional remote subwoofer control is available.

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