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PureAudio Reference Class A Power Monoblock Amplifier (Pair)


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Product Description

Monoblock Power Amplifier, 65W.

It is no accident that some of the most highly regarded amplifiers of the past few decades have been Class A and of low power, often around 60-70 watts. This is a power level that allows many of the conflicting design demands to be resolved in an harmonious manner, resulting in sound that is relaxed, pure and involving.

Quality before quantity is what PureAudio offer with their Reference Power Amplifier. Sounding neutral or slightly tube-like, and devoid of any solid state signature, PureAudio's Reference power amplifier is designed to work with domestic loudspeakers in typical home environments. The Class A Power rating is perfectly matched to this requirement and limits the energy consumption and the heat generated during operation in a true Class A design. The power rating also allows us to include a fully regulated, high-current power supply (this is a very rare inclusion) providing an optimum low impedance, low noise environment, from which the amplifier can deliver its very best.

Having chosen Class A operation PureAudio were conscious of the need to avoid energy wastage and so designed the amplifier to fall back automatically to a low power standby mode when not in use.

The amplifier's Class A operation is automated through both signal sensing and 12V trigger connections. When partnered with the PureAudio Control Preamplifier via the 12V trigger circuit, Class A is activated when the preamplifier is brought out of standby.

PureAudio's universal chassis design fully supports their musical goals. Constructed from heavy aluminium, stainless steel mesh, and supported optimally on three custom designed feet, the non-resonant, non-magnetic structure presents a beautiful, architectural look.

 "The Reference monos provided a warm balance and enveloping soundscape while retaining plenty of headroom...The sonics showed fair dynamics and potent bass. The tonality was very appealing, with the amps imparting a harmonic texture and richness that is usually associated with superb class A amplifiers and good valves."- (July 2013). Read the full review here.


  • Power: 65 Watts continuous into 8 Ohms pure Class A
  • Frequency Response: Flat from 10Hz to 100kHz
  • Input Impedance: 100k Ohms
  • Distortion: Typically <0.01% under normal operation
  • Current Output: 30A peak.
  • Hum & Noise: Inaudible
  • Gain: 28dB
  • Control Terminals: 12V trigger in and 12V trigger loop out.
  • Power Consumption In use: 150 Watts
  • Power Consumption in Standby: 5 Watts
  • Dimensions: 410mm deep, 480mm wide, 115mm high
  • Weight: 16kg