Technical
Manual
STEREO POWER AMPLIFIER
RB-981
Table of Contents
Specification
Specification.....................................1
Wiring Diagram ................................2
Parts List ..........................................3
Adjustment .......................................4
PCB Assembly .................................5,6
Schematic Diagram..........................7,8
Continuous Power Output
(20-20 kHz,
≤
0.03%, 8 ohms)
130 watts/ch.
(20-20 kHz,
≤
0.05%, 4 ohms)
170 watts/ch.
Bridged Mono Power Output
(20-20 kHz,
≤
0.1% THD, 8 ohms)
360 watts
Total Harmonic Distortion
(20 Hz-20 kHz, 8 ohms)
≤
0.03%
Intermodulation Distortion
(60 Hz : 7 kHz, 4:1)
≤
0.03%
Frequency Response
10-100,000 Hz,
±
1 dB
Damping Factor
(20-20,000 Hz, 8 ohms)
500
Speaker Impedance
(Normal mode)
4 ohms minimum
(Bridged mode)
8 ohms minimum
Signal to Noise Ratio
(IHF A network)
120 dB
Input Impedance/Sensitivity
33 k Ohms/1.0 volt
Power Requirements
115 Volts, 60 Hz or
230 Volts, 50 Hz
Power Consumption
400 Watts
Dimensions (W, H, D)
440 x 121 x 327 mm
17.38 x 4.76 x 12.87"
Weight(net)
10.3 kg., 22.66 lb.
BUNZAN-SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,
TOKYO 150-0045, JAPAN
Serial. NO.
Begining
2
Wiring Diagram
®
Quality Uncompromised
Summary of Contents for RB-981
Page 3: ...6 5 ...
Page 4: ...Schematic Diagram 7 8 ...
