Affordable model with advanced features. 55W x 2 (max), 50W x 2 (RMS) high power output ART base chassis to minimise noise and vibration Pure Direct for short and direct signal path Aluminium-extruded front panel Continuous Variable Loudness Control Subwoofer out Speaker A, B or A+B selection 40-station FM/AM preset tuning R-S300 Receiver / Integrated Amplifier Maximum Power (4 ohms, 1kHz, 0.7% THD, for Europe) 55 W + 55 W Minimum RMS Output Power (8 ohms, 20 Hz-20 kHz) 50 W + 50 W (0.04% THD) High Dynamic Power/Channel (8/6/4/2 ohms) 70/77/89/100 W Total Harmonic Distortion (CD to Sp Out, 20 Hz-20 kHz) 0.015% (25 W/ 8ohms) Frequency Response 10 Hz-100 kHz ±1 dB Power Management (Auto Power Standby) Yes (4/6/12 hours) Signal-to-Noise Ratio (CD) 100 dB (Pure Direct On, 200 mV) Audio In / Out 5 / 2 Subwoofer Out Yes FM Signal-to-Noise Ratio (Mono/Stereo) 74 dB / 70 dB FM 50dB Quieting Sensitivity (IHF, 1 kHz, 100% Mod., Mono) 3 µV (20.8 dBf) Pure Direct Yes Standby Power Consumption 0.5 W Dimensions (W x H x D) 435 x 151 x 387 mm Weight 8.8 kg