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The C3d is a  2-channel full range Class AB amplifier. This amp is part of the C Series which 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 capable of producing 500 watts. Rated at 250 watts x 2 at 2Ohm it has plenty of power to drive multiple components in a stereo configuration. You can also bridge this amp for 500 watts x 1 at 4Ohm mono.


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 high pass and low pass crossover networks, and the ability to work with a remote gain control with an output clipping indicator (sold seperately).

Cont Power at 1 OhmN/A
Cont Power at 2 Ohm250W x 2 @ 14v
Cont Power at 4 Ohm150W x 2 @ 14v
Crossover Slope24dB/Oct.
Damping Factor> 100
Dimensions (US)13.1 x 6.9 x 2.03
Dimensions (Metric)333 x 175 x 52.5
Dynamic Power500W x 1 @ 4ohm / 500W x 2 @ 2Ohm
Input Sensitivity8V - 0.25V
S/N Ratio> 100 dB
Tested THD0.2%
Variable High Pass Filter20Hz-5Khz
Variable Low Pass Filter50Hz-5KHz
Wire Gauge (Power and Ground)4 AWG
Wire Gauge (Speaker Output)10 AWG
Model No. Price
C3d $359

* Price is for continental USA only. Does not include taxes or shipping. International prices will be higher due to import taxes, duties, shipping & customs charges.

Available at your local DD dealer