Rotel RX 304

Repair

Japan 1979

Power amplifier
Power 2 x 22 W 8 Ohms
Total harmonic distortion 0.1%
Intermodulation distortion 0.1%
Damping factor 40 to 8 Ohms
Total load impedance 4 - 16 Ohms

Preamplifier
Phono input sensitivity 2.5 mV 47 kOhms (max 140 mV)
Line input sensitivity 150 mV 33 kOhms (max 5 V)
Phono frequency response ± 0.4 dB 30 Hz - 15 kHz
Line frequency response +0.3 - 2 dB 8 Hz - 45 kHz
Phono input signal noise ratio 75 dB
Signal to noise ratio of line inputs 85 dB
Bass tone control ± 10 dB 50 Hz
Treble control ± 10 dB 20 kHz
Loudness +10 dB a 100 Hz, +4 dB a 10 kHz

FM
Mono sensitivity 1.9 µV
Stereo sensitivity 4.8 µV
Mono signal to noise ratio 70 dB
Stereo signal to noise ratio 65 dB
Total harmonic distortion mono 0.15%
Stereo total harmonic distortion 0.25%
Frequency response +1 -3 dB 50 Hz - 15 kHz
Capture Ratio 1.0 dB
Selectivity 60 dB
Image rejection ratio 50 dB
IF rejection 65 dB
Rejection of spurious signals 70 dB
AM suppression 55 dB 1 kHz
Stereo separation 40 dB
Ingresso antenna 300, 75 Ohms

AM
Sensitivity MW 250 µV / m
Sensitivity LW 550 µV / m
Selectivity 23 dB
45 dB signal to noise ratio
Image rejection ratio 4 dB