For three years I use this amp it was given a by a friend of my parents who had no further use for it. Although it is an older "vintage" amp it offers all of the same quality at a fraction of the cost; very effective with no noticeable distortion, no hissing or background noise. The buttons do not play any note any weakness at the connections
the point when I turn the volume knob it is silent  and indeed there were bursts of sound, but since he has taken a common use RAS

Ct technique:
# 2 X 40 watts RMS
# Connections for two groups of pregnant "Main" and "Remote"
# "Main" or "Remote": 4 16 ohm speakers. "Main" + "Remote" Speaker 16 ohm 8.
# Max Diameter 6mm cable HP
# Phono, Tuner, Aux / CD, Tape 1, Tape 2
# Rglages: Bass / Treble / Balance / Loudness
# Direct recording source
# Vumtres digital display with two types depending on the output power (range)
# Release year 1981
# THD 0.03%
H # Dimensions: 85 mm, l: 430 mm, p: 290 mm
# Weight: 5.8 Kg
# Huge Power 310 Watts