> Sugden Audio Masterclass MPA-4 Class ‘A’ Symmetrical Balanced Monaural Power Amplifiers

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Sugden Masterclass MPA-4 Class ‘A’ Symmetrical Balanced Monaural Power Amplifiers – 165 watts

The Sugden Masterclass MPA-4 Class ‘A’ Symmetrical Balanced Mono Power Amplifiers have been developed to present a holographic three dimensional soundstage where the listener can almost walk in and touch the musicians.Tremendous headroom is available in which to develop a wonderfully dynamic portrayal of music in all of its moods.

The MPA-4 has facilities for asymmetric (Phono/RCA) or balanced inputs (XLR); the latter utilising a virtual transformer (discreet) balanced input circuit.The power amplifiers are symmetrical, current feedback, DC-coupled, gain stages with servo controlled DC off-set and multi emitter output devices.

In the balanced mono amplifiers the two power output stages of the stereo power amplifier are connected in balanced mode giving a mono amplifier.The mono power amplifiers give single channel power twice that of the stereo power amplifier.

Among some of the gains of the balanced configuration are a much lower noise floor, even greater dynamics and a rock solid musical sound stage.


Inputs – Mono Balanced.

Outputs – Single pair multi way locking binding posts.


Input Sensitivity – 1 Volt for full output.

Power Output – 165 watts into 8 ohms both channels working.

Frequency Response – 15Hz to 30 kHz +/-0dB.

Bandwidth – 2Hz to 200kHz -3dB points.

Signal to Noise – >85dB.

Nett Weight – 50kg (25kg each).

Overall Dimensions (including terminals) – 250mm x 430mm x 360mm (HWD) by two amplifiers.

Recommended Retail Price – AUD$23,190.00 (for 2 power amplifiers).

E. & O. E.