Model: 4230. 1 Phono (2mV/47kOhm). Type: Stereo / Quadro receiver. 4 pairs of speakers. Stereo: 2 35W / 0,15% Quadrophonic: 4 17W / 0,15%. 1 pre-out (900Ohm). Distortion: 0.3% (stereo), 0.2% (mono) Signal to Noise Ratio: greater than 90dB.
eBay