
VINTAGE PROTON 520 STEREO AMPLIFIER
By the manufacturers of NAD
Well looked after quality amp - working perfectly

These Proton amplifiers were made by the same factory that manufactured NAD amplifiers, to the same specs and standards as the NAD amplifiers. Apart from the face plate colour, this amp looks exactly like its NAD brother.
The amp is in an excellent and 100% working condition. All functions have been tested thoroughly and it was found to be in perfect working order.
There are no dents to the cover or excessive scratches on the face and everything else is 100%.
If you're looking for a good quality, no thrills amp, do not miss this one. They are not often found in this condition.
Below are some specs obtained from the net.
Please have a look at the images to verify inputs/outputs and to judge condition.
Feel free to ask any questions if unsure about anything!
Postnet to Postnet shipping available as an alternative to normal post.

Power output: 20 watts per channel into 8⦠(stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.015%
Damping factor: 90
Input sensitivity: 0.2mV (MC), 2.5mV (MM), 150mV (line)
Signal to noise ratio: 68dB (MC), 80dB (MM), 90dB (line)







