High Quality Audio Equipment

Sugden Signature A21L

  • £2415.00
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  • Product Code: SAA21L

A21L Signature Series 2 Amplifier

Sugden's first commercial amplifier was the A21 in the mid-1960s. It is generally recognised as the first commercial, solid state Pure Class A amplifier to be available for audio enthusists. It was a very special amplifier with a single-ended Class A output configuration and current feedback. This design concept did not appear generally in commercial audio amplifiers until over a decade later. Capable of recreating a musical performance well in advance of its peers, it made the name of Sugden synonymous with musical performance. The true potential of the output configuration was realised in the 1980s when it was coupled to modern components, reduced internal filtering and multi emitter solid state output devices.

The result was an amplifier of extended and more controlled bass and treble but still retaining the wonderfully detailed mid range of the original design. The amplifier became the A21a, a reference amplifier on many continents. Further improvements have achieved significant enhancement of performance and the amplifier has been rebranded as the Sugden A21a Series 2.


This product is available to order only and delivery is approximately 4 weeks. Payment can be made in full at time of order by selecting Add to Basket and Buy alternatively contact us and we can take a deposit with the balance due 7 days before despatch.


Inputs: Five line level,optional mm/mc phono

Outputs: Pre-out (variable), tape out (fixed), One pair of stereo multi-way binding posts

Remote control: Volume up/down, Earth terminal



Line Input sensitivity: 170mV for max out

Phono input sensitivity : 3mV/mm, 0.2mV/mc for max. output

Phono Loading : MM 47K MC 100 Ohm

Power output : 23 Watts into 8 Ohms both channels working

Frequency response: +/-dB 10Hz-20kHz

Bandwidth: +/- 3dB 6Hz-200kHz

Signal to noise: >83dB

Gross weight (packed): 11kgs

Dimensions: 92 x 430 x 350mm


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