Sugden Masterclass PA-4 (PA4) Phono Amplifier

An amplifier of the most extreme sensitivity with separate moving coil and moving magnet/RIAA gain stages. Facilities include two moving coil stereo input pairs, with variable impedance loading and a single pair of moving magnet inputs. These facilities are selected through precision relays operated via front fascia mounted switches. Designed with a tremendously high headroom they can accomodate cartridges of the most extreme output characteristics.


SPECIFICATION
Input Two stereo moving coil inputs 470R x 22nf
Two x stereo pairs load, adjustment phono sockets
One moving magnet stereo input facility

Outputs Two pair stereo phono output sockets
Output 10 volts (max)
Input Sensitivity mc. 0.125mV for 125mV output
mm 2.5mV for 125mV output
Frequency Response 10Hz to 30kHz +/- 0.1dB
Stereo Separation -70dB