Rotel RKB-250 Technical Manual

T echnical
Manual

Table of Contents

Specification.....................................1
Parts List ..........................................2~5
Adjustment.......................................6
Assembled View...............................7~8
PCB Assembly .................................9
Schematic Diagram..........................10

Specification

Continuous Power Output into 8 ohms
(20-20kHz, < 0.03% THD) 2
50 watts/ch into 8 ohms, all channel driven
Continuous Power Output into 4 ohms
(DIN 1 kHz,1.0% THD) D
90 watts/ch into 4 ohms, all channels driven
Total Harmonic Distortion o
(20Hz-20kHz, 8 ohms) 2
Continuous rated power. <0.03%
One-half rated power. <0.03%
1 watt power. <0.03%
Intermodulation Distortion
(60 Hz : 7 kHz, 4:1)
< 0.03%
Danping Factor
(20-20,000 Hz, 8 ohms)
>200
Input Impedance
20 k Ohms
Input Sensitivity
1.0 volt
Amplifier Gain:
26 dB
Input Overload Level
5.0 volt
Peak Current
> 25 A
Frequency Response (±1 dB)
10Hz-100kHz
BUNZAN-SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,
TOKYO 150-0045, JAPAN
Quality Uncompromised
S/N Ratio (IHF A)
115 dB
Crosstalk/Separation
> 70 dB
Speaker Impedance
4 ohms minimum
Auto Turn On Level (with all inputs)
3 mV input signal
Power Requirements
USA: 120 Volts, 60 Hz
Europe: 230 Volts, 50 Hz
Power Consumption
190 Watts
Idle: 22 Watts d
Standby: 2.3 Watts
Dimensions (W x H x D)
(not including rack adaptors) n
430 x 100 x 322 mm
16.9 x 3.9 x 12.7 in
Weight (net)
8 kg, 17.6 lb.
Panel Height
2U, 88.1 mm/3.5 in
®
STEREO POWER AMPLIFIER
RKB-250
Serial. NO.
Y-381A-0505/pdf