PureAudio Reference Class A Monoblocks

The PureAudio Reference Class A Power Amplifier is capable of conveying the emotion that is an essential ingredient in reproduced music. With careful choice of components and a straightforward signal path the resulting sound is pure and involving.

The amplifier is designed to work with domestic loudspeakers in typical home environments. The Class A Power rating was chosen based on what is needed to drive real world loudspeakers, while managing the heat generated during operation in a true Class A design. The power rating was also chosen to allow us to include a fully regulated high-current power supply. This maintains a very low impedance, low noise environment, from which the amplifier can deliver its very best.

Having chosen Class A operation for its musical nature we 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 operation is automated through both signal sensing and 12V trigger connections. When partnered with our Control Preamplifier the Class A mode is triggered when the preamplifier is brought out of standby.

As with all of our products, the chassis design fully supports our 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.

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


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