Standard 500 series modular size 1.5″ x 5.25″
Single-ended Class A amplifier
UK-made Carnhill/St Ives input transformer
Custom-designed Jensen output transformer
Stepped-gain rotary switch in 5dB steps
Output level pot for trim and mute
LED-lit push-buttons
28kHz feature brings out high frequency detail
Custom-made Marconi-style knobs
High headroom & CMR, low noise design
