AudioControl Rialto 400 Power Amplifier

List price: £950.00
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Rialto 400
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AudioControl Rialto 400 Compact Power Amplifier With Integrated DAC

The AudioControl Rialto 400 is a compact, high-powered amplifier with a built-in audiophile-grade DAC (digital to analogue converter) designed specifically to provide the best possible performance and sound quality for all analogue and digital audio systems.

The Rialto 400’s amplifier delivers over 100 watts of power per channel into 8 ohms and 200 watts per channel into 4 ohm loads, it features a built-in high-performance Wolfson® DAC that drastically improves audio quality from connected devices including the likes of Sonos and Bluesound.


Compact Amplifier and Digital Analog Converter (DAC)

2 Channels x 100 Watts at 8 Ohms

2 Channels x 200 Watts at 4 Ohms

Stable Down to 3.6 Ohms

Bridgeable Mono Block at 400 Watts

1 x Digital Optical & COAX Inputs

Analogue Stereo and Speaker Level Inputs

Input Priority for SMART Priority Switching

Subwoofer Output

Wolfson Digital Analog Converter (DAC) For Audiophile Performance

AudioControl Patented AccuBASS ™ Bass Response

12v Trigger Input • Bridgeable • Headphone Input

Compact Size at 216 x 137 x 74 mm (W x D x H)

Available in Sierra White or Midnight Black


AudioControl Rialto R400 Stereo Power Amplifier


  • Digital Inputs: Optical Toslink, Coax S/PDIF 75 ohms
  • Analog Inputs: Stereo RCA, Stereo Speaker Level, Stereo 1/8th Inch
  • Input Sensitivity: 230mV (RCA); 2.0V (Speaker Level)
  • Signal Sense Trigger Minimum: 10mV (RCA); 100mV (Speaker Level)


  • Amplifier Channels: 2
  • Power Output (8Ω): 100W per channel
  • Power Output (4Ω): 200W per channel
  • Minimum Speaker Load: 4Ω
  • Preamp Outputs: Mono RCA Subwoofer, Mono RCA Bridged


  • Signal to Noise Ratio: >95dB
  • Frequency Response: 20Hz-20kHz
  • Total Harmonic Distortion: 0.09%


  • 12 Volt Trigger Outputs: 1


  • Power Consumption (typical usage): 40W
  • Power Consumption (maximum): 520W

Weights & Dimensions:

  • Dimensions: 8.5”W x 5.4”D x 2.9”H
  • Weight: 2.7kg

In the box: Rialto 400, Power Cord, User Manual, Warranty


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