Owner’s Manual RB-951 MkII Stereo Power Amplifier POWER AMPLIFIER RB-951 MkII CH1 CH2 PROTECTION POWER BRIDGED MONO CLIPPING LEVEL LEVEL
RB-951 MkII Stereo Power Amplifier English 2 1: Controls, Connections, & Internal Jumpers POWER AMPLIFIER RB-951 MkII CH1 CH2 PROTECTION POWER BRIDGED MONO CLIPPING LEVEL 1 2 LEVEL 3 6 7 8 12 TRIG IN CAUTION 4 9 AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
2: Hookup (Stereo or Parallel Mono modes) RCA OUTPUTS R L 12 TRIG IN CAUTION SIGNAL SENSE RISK OF ELECTRIC SHOCK DO NOT OPEN 10 A AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR INPUT CH2 CH1 WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. BRIDGED MONO NORMAL STERO SPEAKERS CHANNEL 2 CHANNEL 1 OFF CH2 BRIDGED CH1 SIGNAL OUTPUT LINK AC BREAKER POWER AMPLIFIER MODEL NO.
RB-951 MkII Stereo Power Amplifier 4 3: Hookup (Bridged Mono mode) RCA OUTPUTS R L 12 TRIG IN CAUTION SIGNAL SENSE RISK OF ELECTRIC SHOCK DO NOT OPEN 10 A AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR INPUT CH2 CH1 WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. BRIDGED MONO NORMAL STERO SPEAKERS CHANNEL 2 CHANNEL 1 OFF CH2 POWER AMPLIFIER MODEL NO.
English 5 WARNING: There are no user serviceable parts inside. Refer all servicing to qualified service personnel. WARNING: To reduce the risk of fire or electric shock, do not expose the unit to moisture or water. Do not allow foreign objects to get into the enclosure. If the unit is exposed to moisture, or a foreign object gets into the enclosure, immediately disconnect the power cord from the wall. Take the unit to a qualified service person for inspection and necessary repairs.
RB-951 MkII Stereo Power Amplifier Contents 6 Speakers ................................................ 9 1: Controls, Connections, & Internal Jumpers 2 2: Hookup (Stereo or Parallel Mono modes) 3 3: Hookup (Bridged Mono mode) 4 About Rotel ........................................... 6 Getting Started ...................................... 7 Operating Features 7 A Few Precautions 7 Placement 7 AC Power and Control ............................
Getting Started Thank you for purchasing the Rotel RB-951MkII Stereo Power Amplifier. When used in a highquality music or home theater system, your Rotel amplifier will provide years of musical enjoyment. The RB-951MkII is a sophisticated two-channel power amplifier. Discrete output devices, a massive power supply with toroidal transformer, premium components, and Rotel’s Balanced Design ensure superb sound quality. High current capability allows the RB-951MkII to drive difficult speaker loads with ease.
RB-951 MkII Stereo Power Amplifier 12V Trigger Input A pair of screw terminals for connecting the wires carrying a +12 volt trigger signal to turn the amplifier on and off, such as might be used in an elaborate custom installation. To use this feature the adjacent slide switch must be placed to the left position (see previous section). The TRIGGER INPUT accepts any control signal (AC or DC) ranging from 3 volts to 30 volts.
Clipping Indicators Speaker Wire Selection Two front panel LEDs (one for each channel) flash to indicate when the amplifier is “clipping” or being asked to deliver more output current than it is capable of delivering. Clipping will cause distortion levels to increase. Use insulated two-conductor stranded wire to connect the RB-951MkII to the speakers. The size and quality of the wire can have an audible effect on the performance of the system.
RB-951 MkII Stereo Power Amplifier Internal Jumper Settings for Custom Installation (see figure 1) There are internal jumpers that can be used to disable the front panel level controls, to select one of two input sensitivity settings, and to engage the special Parallel Mono mode for driving low impedance speaker combinations in custom installations. WARNING: Removing the top cover of the amplifier to access the jumpers may expose you to potentially dangerous voltages.
English 11 Specifications Continuous Power Output Stereo Mode (20-20 kHz, < 0.03% THD) 50 watts/ch into 8 ohms Continuous Power Output Bridged Mono Mode (20-20 kHz, < 0.1% THD) 150 watts/ch into 8 ohms Total Harmonic Distortion (20Hz-20kHz, 8 ohms) < 0.03% Intermodulation Distortion (60 Hz : 7 kHz, 4:1) < 0.
The Rotel Co. Ltd. 10-10 Shinsen-Cho Shibuya-Ku Tokyo 150-0045 Japan Phone: +81 3-5458-5325 Fax: +81 3-5458-5310 Rotel of America 54 Concord Street North Reading, MA 01864-2699 USA Phone: +1 978-664-3820 Fax: +1 978-664-4109 Rotel Europe Meadow Road Worthing, West Sussex BN11 2RX England Phone: +44 (0)1903 524 813 Fax: +44 (0)1903 524 831 Rotel Deutschland Kleine Heide 12 D-33790 Halle/Westf.
