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Amphion Amp400.8 - Multichannel amplifier 8 x 400W

by Amphion
£3,999.00 inc. vat
£3,332.50 ex. vat
Please contact us for availability.

Amphion Amp400.8 - Multichannel amplifier 8 x 400W

The Amphion Amp400.8 is a high performance multichannel amplifier that provides 8 channels of Class-D, low distortion power.

To reach the needed sonic character and performance, an in-house designed buffer-stage was added to complement the merits of the latest Class-D technology. The buffer stage improves the impedance characteristics and cohesion between the channels, so that speed, control, neutrality, and ultra-low distortion can come across in an emotionally involving manner.

Though Amp400.8 was mainly developed for immersive audio, nothing prevents using it for other multichannel applications as well. As all 8 channels are identical and discreet it can also be used in a 2-channel environment for driving up to 4 pairs of passive speakers. It will equally drive both 8 ohm and 4 ohm loads, and partners perfectly with all Amphion models. Though Amp400.8 was developed and optimized for Amphion monitors, it provides excellent results with wide range of passive speakers. Neutrik XLR and Speakon connectors offer a convenient and secure way to connect the amplifier to rest of the system.


  • Power rating:
    • 410W @ 1 % THD+N, 20Hz - 20kHz, 4 ohm (2 channel driven)
    • 205W @ 1 % THD+N, 20Hz - 20kHz, 8 ohm (5 channel driven)
  • Dynamic range: 121.5 dB(A)
  • Peak output current: 20A
  • THD+N 1 W@ 1 kHz: 0.001 % @ 10 W (4 ohm, 100Hz) SE
  • Amp + power supply efficiency (max): >90%
  • Mains: Universal mains, auto select (100-240 V, 50-60 Hz)
  • Certification: Safety EN/IEC/UL 62368-1 EMC EN/IEC 55032 (CISPR32)
  • Inputs: Balanced 3-pin XLR female 
  • Speaker connectors: Neutrik Speakon (NL2FX) 2-pole cable
  • Casing: 19" rack mountable (3U), high quality aluminium 
  • Power switch: Back panel, rocker switch
  • Measurements (W x H x D): 482 x 133.3 x 317 mm
  • Weight: 7.2kg (16 lbs)