Rotel RB-991, Technical Manual, Page: 1 / 4

Technical
Manual
STEREO POWER AMPLIFIER
RB-991
Table of Contents
Specification
Specification.....................................1
Wiring Diagram ................................2
Parts List ..........................................3,4
Adjustment.......................................4
PCB Assembly .................................5,6
Schematic Diagram..........................7,8
Continuous Power Output (20-20 kHz,
≤
0.03%, 8 ohms) 200 watts/ch.
(20-20 kHz,
≤
0.05%, 4 ohms) 300 watts/ch.
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 4-16 ohms
Signal to Noise Ratio (IHF A network) 120 dB
Input Impedance/Sensitivity (RCA Inputs) 33 k Ohms/1.0 volt
(XLR Inputs) 33k Ohms/1.0 volt
Power Requirements 115 Volts, 60 Hz or
230 Volts, 50 Hz
Power Consumption 550 Watts
Dimensions (W, H, D) 440 x 127 x 385 mm
17.38 x 4.76 x 15.16”
Weight (net) 16.7 kg., 36.74 lb.
BUNZAN-SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,
TOKYO 150-0045, JAPAN
Serial. NO.
Begining
Wiring Diagram
®
Quality Uncompromised
Y-310A-98061M/S-S
2