D-40 Amplifier

OHM’s collaboration with MC2 Audio continues with five new amplifiers being added to the current product list.

D Series offers the assurance of the highest quality audio power amp technology with future proofing via the inclusion of simple to use digital audio networking.

Running cool in even the most difficult conditions, the D-40 can deliver 4 x 1000W into 4 ohms with all channels driven, and an substantial 2 x 2400W bridged [4R]. with outstanding distortion and noise figures right up to maximum output. This power is maintained even with reduced mains voltages thanks to generous limiter headroom.

Connect to a D-Series DSP amplifier using a single CAT5 cable to realise a stereo 4 way system with no further external processing required. Run bridged channel pairs or link adjacent inputs for total flexibility in either analogue or digital mode.

This model, uniquely in the range, also features backup speaker inputs to connect to a back-up amplifier.

Key Features

Dante compatible
4 x 1000W into 4 ohms
Digital or analogue switchable

Product Details


Number of Channels

Output Power: (per channel)*

8 Ohms

4 Ohms

2.7 Ohms

2 ohms

Output Power: (bridged)

8 Ohms

4 Ohms

THD%: (@1dB below max output)

@ 1kHz

20Hz to 20kHz

Gain / Sensitivity


Sensitivity (for max power)

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500 W

1000 W

1400 W

1200 W

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2000 W

2400 W

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< 0.08%

< 0.01%

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26/32 dB

6.2 dBu

Frequency Response:

(+ 0/- 0.5dB)

Power Consumption: (< 5W in standby)

Nominal @ 240v into 4 ohms

Nominal @ 120v into 4 ohms

Dimensions: (1U) (mm)


Single Box (UK shipping)

Double Box (outside UK)



Boxed (shipping weight)

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20 Hz to 20 kHz

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88(h) x 482(w) x 428(d)

230 x 580 x 560

250 x 610 x 600

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10.0 kg

12.0 kg

*for 100V line drive specifications, visit downloads above and read the 100V line system file.

No hardware available for this product.


D-40 Datasheet


100V Line Technical Data