Aurex SB-220

Commentary

A pre-main amplifier that pursues high CP by polishing sound quality without pursuing high power.

LED is used for power indicator.

The tone control is 11-contact Klix/Klukš top type.

Model Rating

Type	Pre-main amplifier
Circuit system	All-stage direct connection OCL circuit
Power Amplifier Unit
Output	Continuous output (1 kH, single-ch drive) : (1 kHz, both channel drive) : 40Hz-20kHz output : 25W/25W (8 Ω) 30W/30W (4 Ω) 24W + 24W (8 Ω) 27W + 27W (4 Ω) 22W + 22W (8 Ω) 24W + 24W (4 Ω)
Harmonic distortion factor	0.8% or Less (Continuous Output) 0.08% or Less (8 Ω at 1W output)
Cross modulation distortion factor	0.8% or Less (Continuous Output) 0.08% or Less (at 1W output)
Output Bandwidth (IHF)	10 Hz ~ 60 kHz (Distortion Factor 0.8%)
Load impedance	4 Ω ~ 16 Ω
Damping factor	30 (8 Ω, 1 kHz)
Residual noise	1 mv (8 Ω)
Preamplifier Section
Input Sensitivity / Impedance	Phono : 2.5mV/47k Ω Aux, Tuner : 150mV/47k Ω
Recorded output	Tape rec:150mV DIN:30mV
Equalizer allowable input	MAG : 200 mV (RMS, 1 kHz)
RIAA deviation	± 0.5 dB
Signal-to-noise ratio (IHF)	Phono : 66 dB or more Aux, Tuner : 80 dB or more
Frequency characteristic	15z ~ 70 khz -3dB (at 1W output)
Tone control	Bass : ± 9 dB (100 Hz) Treble : ± 9 dB (10 kHz)
Loudness	+ 10 dB (100 Hz), + 5 dB (10 kHz)
<General>
Semiconductor used	Transistor : 22 Diode : 12 pcs LED : 1
Power outlet	Linkage : 1 system Non-linked : 1 system
Power supply voltage	100 VAC, 50Hz/60Hz
Power consumption	45W
External dimensions	Width 400x Height 126x Depth 312 mm
Weight	7.1kg