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
17
3/8"
x 5
5/8"
x 13
11/16"
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
Summary of Contents for RA-972
Page 5: ...5 6 PCB Aassembly ...
Page 6: ...7 8 Schematic Diagram ...
Page 7: ...9 10 Schematic Diagram ...
