DPA-4004 High End
4 Channel Power Amp

The Gato Audio DPA-4004 is a 4 channel flexible power amplifier, that offers unparalleled power and performance in the smallest and most beautiful package.

Pure Muscle!

The DPA-4004 offers no less than 4x400W in 8ohm load, doubling in 4ohm. Each pair of channels are bridgeable – enabling this fully configurable powerhouse to be used for either multichannel setups, active systems or for bi-amping speakers.

This amplifier is the obvious choice for the Gato Audio PRD-3s preamplifier/DAC, but is also very suitable as a workhorse for the integrated amplifiers DIA-250S and DIA-400S – offering even more channels and flexibility.

For multichannel systems it will serve as a slave for a surround processor perhaps in combination with a PRD-3S, DIA-250S or DIA-400S enabling their Home Theater setting.

Class-D Output Stage

The DPA-4004 amplifier offers two state of the art Class-D output stages each with dedicated and optimized switch mode power supplies. The multiple stage power amplifiers are built around proven technology from International Rectifier, optimized with precision high frequency oscillators and PWM modulators. Precision switching MOS-FET transistors, with super low on-resistance ensures the high frequency switching is done perfectly and with as little loss as possible. The output filters are made from quality PP capacitors and low DCR coils, converting the high power PWM signals back into detailed and smooth analogue music.

Configuration Options Galore


4 Channels: 4x 400W

2 Channels: 2x 1400W

3 Channels: 1x 1400W + 2x 400W


  • Two Class D output stages
  • Balanced and unbalanced input for each channel
  • Fully configurable 2-4 channel outputs
  • Low power consumption
  • 12V standby trigger
  • Nonmagnetic enclosure
  • Designed, developed and build in Copenhagen, Denmark

    • Technical stuff

      • Output power @ 8 Ω 4x400W/2x800W/1x800W+2x400W
        Output power @ 4 Ω 4x800W/2x1600W/1x1600W+2x800W
        Frequency response 20 Hz-20 kHz - 0.5 dB, and 2 Hz-70 kHz - 3 dB
        Total Harmonic Distortion < 0,01% at rated power
        Signal to noise ratio > 114 dB
        Input impedance 20 kΩ RCA or 40 kΩ Balanced
        Voltage gain 26 dB
        Recommended speaker load SE 4 -16 Ω , BTL 8 -16 Ω


        Balanced analogue inputs 2 pairs gold plated XLR Neutrik
        Unbalanced analogue inputs 2 pairs of gold plated RCA stereo
        Speaker output 4 pairs of gold plated safety banana
        Trigger, 12 V 1 pc mini jack

        Size & Power

        Power Requirements 115 VAC/230 VAC, 50 Hz/60 Hz, 2000W max
        Power consumption stdb/idle/max < 1W/75W/2000W
        Dimensions (WxHxD) 325 x 105 x 420 mm / 12.8 x 4.1 x 16.5"
        Weight 13 kg / 28.7 lb


DPA-4004 user manual (pdf)