Acknowledging the golden era of Hi-Fi with its beautiful design, the A-S1200 boasts an impressive array of the latest technology to accurately deliver an emotional, purely musical sound. High quality components delivering exceptional musical expression Toroidal power transformer with enormous energy for a pure musical sound Gorgeous level meters convey dynamics and music pulse with a nod to the nostalgic Hi-Fi era Floating balanced power amplifier Mechanical ground concept maximizes rigidity for expressive and rhythmic bass Receiver / Integrated AmplifierRated Output PowerHigh Dynamic Power/Channel (8/6/4/2 ohms)Damping FactorFrequency ResponseRIAA Equalization DeviationTotal Harmonic Distortion (20Hz to 20kHz)Signal-to-Noise RatioInput SensitivityTransformerDimensions (W x H x D)Weight A-S1200 Receiver / Integrated Amplifier Rated Output Power [20 Hz-20 kHz, 0.07% THD] 90 W + 90 W (8 ohms), 150 W + 150 W (4 ohms) High Dynamic Power/Channel (8/6/4/2 ohms) 105/135/190/220 W Damping Factor ≧ 250 (1 kHz, 8 ohms) Frequency Response +0 / -3 dB (5Hz-100kHz) , +0 / -0.3 dB (20 Hz-20 kHz) RIAA Equalization Deviation +/-0.5 dB (PHONO (MM/MC)) Total Harmonic Distortion (20Hz to 20kHz) PHONO MC→LINE2 OUT: 0.02% (1.2 Vrms), PHONO→LINE2 OUT: 0.005% (1.2 Vrms), CD, etc.→SP OUT: 0.035% (50 W/8 ohms) Signal-to-Noise Ratio PHONO MC: 90 db, PHONO MM: 96 dB, CD, etc.: 110 dB Input Sensitivity [1 kHz, 100 W/8 ohms] PHONO MC: 150 uVrms/50 ohms, PHONO MM: 3.5 mVrms/47 kohms, CD, etc.: 200 mVrms/47 kohms, MAIN IN: 1 Vrms/47 kohms Transformer 625VA (Toroidal) Dimensions (W x H x D) 17-1/8" x 6-1/8" x 18-1/4" Weight 48.5 lbs