Technical
Manual
STEREO INTEGRATED AMPLIFIER
RA-972
Table of Contents
Specification
Specification......................................1
Parts List ...........................................2,3,4
Adustment..........................................4
Case Outlines....................................4
PCB Assembly ..................................5,6
Schematic Diagram...........................7~10
Continuous Power Output 60 watts/ch
(20 - 20 kHz, <0.03 %, 8 ohms)
Total Harmonic Distortion (20 Hz - 20k Hz) <0.03 % at rated power,
1/2 power or 1 watt
Intermodulation Distortion (60 Hz : 7 kHz, 4:1) <0.03 % at rated power,
1/2 power or 1 watt
Frequency Response - all inputs 10 Hz - 100 kHz, +1, -3 dB
Dampning Factor (20 - 20,000 Hz, 8 ohms) 150
Input Sensitivity / Impedance 160 mV / 33 kOhms
Input Overload 5 V
Preamplifier Output / Impedance 1 V / 470 ohms
Tone Controls - Bass/Treble ± 6 dB at 100 Hz / 10 kHz
Signal to Noise Ratio(IHF"A"weighted) >95 dB
Power Requirements
USA Version 115 volts, 60 Hz
European version
230 volts, 50 Hz
Dimensions(W x H x D) 440 x 92 x 347 mm
173/8" x 55/8" x 1311/16"
Weight 6.5 kg / 14.3 lbs.
SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,
TOKYO 150-0045, JAPAN
Serial. NO.
Beginning
®
Quality Uncompromised
Y-323A-00015C/S-S
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