Sugden A21L Signature Amplifier




A combination of superb sound and solid engineering has made the A21 a reference amplifier for fifty years. The secret of its continued success is a pure class A single ended design that has evolved and been carefully upgraded. A special signature model is now available for both the A21 and A21SE versions offering even better sound and performance.


A21 Signature Line and Integrated Amplifier

The Sugden pure class A design provides affordable high-end performance from a beautifully engineered single box integrated amplifier.  Compact in size with a simple but stylish design, the A21 is possibly the only amplifier you will ever need. With many of the original A21’s still in daily use after fifty years, it could also last a life time. Providing a large soundstage and depth to all types of music, the A21 is an amplifier you can listen to for hours without fatigue.  The single ended circuit provides impressive dynamics and incredible bass.



Inputs                                    Five line level (four on A21 Integrated)

                                              Optional mm/mc phono

Outputs                                 One pair of stereo multi-way binding posts

                                              Pre-out (variable), tape out (fixed)

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

Frequency Response           +/-1dB 10Hz-20kHz

Bandwidth                             6Hz-200kHz

Signal to Noise                      >83dB

Gross Weight  (packed)       11kgs

Dimensions                           92 x 430 x 350mm (hw

Customer Reviews

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Stunning! Review by Jim
This amp is truly stunning. I bought it a couple of weeks ago after first borrowing the demo machine from Moorgate Acoustics and am even more pleased with it than I thought I would be. My first impression was the amazing amount of detail in the mid range , revealing more detail than I had heard before. Then I noticed how tight and punchy the bass is. This amp has so much power. It really belies it's 25 Watt rating. When I listen to vinyl records, I am using only about 15% on the available volume control and it is plenty loud enough! The "soundstage" is superb with clear separation of both the instrumentation and the vocals. It is amazing. I just love it and highly recommend it. (Posted on 25/04/2019)

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