I have some experience with older recievers, not this one. I don't have specs on it.
I wouldnt worry about overpowering speakers, it's underpowering them that causes problems. Keep the volume reasonable and you'll be fine, amps don't blow speakers, stupid people who can't handle a volume knob do.
Thank You for advice, I think these are the specs:
Mid 90s vintage 50W stereo receiver with RS-1410 remote control
Specifications :
-:®:- 199? vintage
-:®:- Power rating : 50W RMS at 8 ohms THD: 0.09%
-:®:- Frequency response : 10Hz to 70kHz +1.0dB / -3.0dB
-:®:- Input sensitivity : phono: 2.5mV / 47kohms CD 200mV / TAPE: 150mV / 47kohms
-:®:- Signal to noise : phono: 73dB CD / TAPE: 90dB
-:®:- Tone controls : Bass: +/- 8dB at 50Hz Treble: +/- 7dB at 10kHz
-:®:- Loudness: +10dB at 50Hz / +6dB at 10kHz
FM section :
-:®:- Tuning frequency range : 88 to 108MHz
-:®:- Usable sensitivity : mono: 13.2dBf T-100: 2.5uV
-:®:- Quieting sensitivity [50dB] : mono: 17dBf stereo: 40dBf
-:®:- Signal to noise [65dBf] : stereo: 70dB
-:®:- Distortion [at 65dBf, 1kHz] : mono: < 0.2% stereo: < 0.3%
-:®:- Stereo separation : 40dB at 1kHz
AM section :
-:®:- Tuning frequency range : 530 to 1,600kHz
-:®:- Usable sensitivity : 55dB / m [562uV /m]
-:®:- Selectivity : 30dB
-:®:- Signal to noise : 40dB
-:®:- Dimensions [ H x W x D ]: 430 x 125 x 335mm
-:®:- Weight : 9.5kg packed ~ 11kg