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.
Key Features
– High current power supply
– Motorised volume control (Sugden RC5 handset included)
– Straight line pre-amplifier design
– Improved shorter switching circuits
– Titanium and Graphite finishes
– Higher grade components
– Improved technical performance
– High density case work
– Masterclass quality front panel and controls
– Expanded input facility
Specifications
– 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)





