M3a-4000-7 Seven Channel Amplifier

Current Stock:
SKU: M3a-4000-7
size: 17.50 W × 5.63 H × 18.50 L
Weight: 52.00 LBS
POWER: 3 x 800W / 4 x 400W / 8Ω

The D-Sonic M3a-4000-7 represents the sonic state of the art in multi-channel amplifier design. Featuring very powerful, high fidelity Class D modules fed by a best-in-class proprietary input circuit, the M3a-4000-7 is an impressively dynamic home theater amplifier. Owners can enjoy 800W of power for their left, right and center channels with vanishingly low distortion, iron-tight bass control and realistic soundstage, while still reserving 400W for each of the four surround channels.


  • M3 Multichannel units are designed to distribute the power proportionally to the various channels. The front right and left require the dominant share (70% average) of all of the output for 5.1 and 7.1 channel performance. Some customers believe the center channel should have this higher power also. We offer both options.
  • Any combination, including full power in all channels, is available in our CUSTOM SERIES described (see separate Amplifier category).
  • All 3-7channel units have 12VDC trigger circuits to allow standby, low energy dissipation when not in use.
  • Manual, front panel shutoff is standard for ultimate safety and zero energy loss.
  • All cords are 20A and use a standard wall plug.
  • Dimensions: 17.5”W x 18.5”D x 5.0”H. Add .63″ to height for standard feet, .25″ for rack mount feet.
  • Weight: 50 lbs.



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