Sugden A21 Signature
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 voltage rail circuit provides impressive dynamics and incredible bass.
The A21 Signature integrated amplifier is available with or without a MM/MC phono input.
Without a phono input it is designated the A21L (line input only). A21aL models can be fitted with a phono input at a later date.
Sugden A21 Signature Specifications
Inputs – Fine line level (four on A21 Integrated), Optional mm/mc phono
Outputs – One pair of stereo multi-way binding post, 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 470 Ohm
Power Output – 25 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 (HWD)
A21 Pure Class A
The A21 was the worlds’ first production pure class A transistor amplifier and a great success.
The partnership with Richard Allan was short lived and within a year the amplifier was renamed the SUGDEN A21. Shortly afterwards, manufacturing was moved to larger premises in Cleckheaton, West Yorkshire
Present day
Today they still manufacture in the same tradition with each Sugden product being handmade by a single highly skilled team member. Half of the team have been with the company for over thirty years enjoying a life-long career. Our involvement in the full manufacturing process still exists from design to despatch. We operate our own custom engineering shop , screen printing and assembly room.
Sugden products are a truly handmade quality British product.
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