Audio Database
PR-50
Commentary

Bulb-type control amplifier using Siemens vacuum tube.

Comes with a wood case.

Model Rating
Type Control amplifier
Input Sensitivity / Impedance Phono : 2mV/47k Ω
Gain (EQ) 35.1dB
Signal-to-noise ratio 63dB(2mV)
78dB(10mV)
104dB(260mV)
Total harmonic distortion factor
Phono


Aux, Tuner, Tape
:


:
0.18%(20Hz)
0.086%(1kHz)
0.09%(20kHz)
0.035%(20Hz)
0.034%(1kHz)
0.062%(20kHz)
Vacuum tube used
Made by Siemens ECC81x1
ECC82x2
ECC83x1
Pwer 117 VAC, 50Hz/60Hz
External dimensions W 483x H 100x D 292 mm (+ 13 mm)
Weight 5kg
Attachment Wood case