ToP-ART (Total Purity Audio Reproduction Technology) and high quality parts
- I/O (input to output) Direct Symmetrical Design
- ART (Anti-Resolution and Tough) Base
- Custom-made power transformer / 12,000uF block capacitors / Aluminum-extruded heat sinks
120W x 2 (max), 85W x 2 (RMS) high power output
Pure Direct Mode for Greater Sound Purity
Continuous Variable Loudness Control
Gold-plated speaker terminals and RCA (CD, Phono) and coaxial terminals
Digital audio inputs for TV or Blu-ray Player
Connection for YBA-11 Bluetooth Wireless Adapter
Simple yet sophisticated design (aluminium front panel)
Auto Power Standby

SpecificationsMinimum RMS Output Power (8 ohms, 20 Hz-20 kHz)Maximum Power (4 ohms, 1kHz, 0.7% THD, for Europe)High Dynamic Power/Channel (8/6/4/2 ohms)Damping FactorFrequency ResponseTotal Harmonic Distortion (CD to Sp Out, 20 Hz-20 kHz)Signal-to-Noise Ratio (CD)Audio In / OutDigital InputSubwoofer OutDC outPure DirectToP-ARTStandby Power ConsumptionPower Management (Auto Power Standby)Dimensions (W x H x D)Weight
A-S501
A-S501
Specifications
Minimum RMS Output Power (8 ohms, 20 Hz-20 kHz) 85 W + 85 W (0.019% THD)
Maximum Power (4 ohms, 1kHz, 0.7% THD, for Europe) 120 W + 120 W
High Dynamic Power/Channel (8/6/4/2 ohms) 130/150/185/220 W
Damping Factor 240
Frequency Response 10 Hz-100 kHz +/-1.0 dB
Total Harmonic Distortion (CD to Sp Out, 20 Hz-20 kHz) 0.019% (50 W/8 ohms)
Signal-to-Noise Ratio (CD) 99dB (input shorted, 200 mV)
Audio In / Out 8 / 2
Digital Input Yes (optical / coaxial)
Subwoofer Out Yes
DC out Yes
Pure Direct Yes
ToP-ART Yes
Standby Power Consumption 0.5W
Power Management (Auto Power Standby) Yes
Dimensions (W x H x D) 435 x 151 x 387 mm
Weight 10.3 kg