l~Russound® R-Series R1250MC 6-Zone, 12-Channel Power Amplifier User's Manual
IMPORTANT SAFEGUARDS lA_AI 'WARNING" " TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, 00 NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE." "CAunON" " TO REDUCE THE RISK OF ELECTRIC SHOCK, 00 NOT REMOVE COVER. NO USER - SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUAL~ FlED SERVICE PERSONNEL.
R1250MC AMPLIFIER INTRODUCTION The Russound R1250MC is a 12-channel power amplifier and is ideal for use as the main amplifier in home theater and distributed audio systems. The 12 channels are arranged in pairs to provide amplification for six stereo zones. The R1250MC provides an array of useful features such as bridge mode operation, independent zone triggering, bus inputs and multiple speaker outputs per zone to meet a wide variety of applications and configurations.
R1250MC AMPLIFIER Uneln L @ II ~~ Uneln L @ R II@)~ ..w+--II l'owerAmplifierRllSOMC OesI.,-inUU N~rmrk.ct a Bus Input/Output: The bus line input is an optional input that can be used to connect a single source to multiple zones. The bus line output is a passive passthrough of the bus input and can be used to daisy chain the source to other amplifiers in the system.
R1250MC AMPLIFIER BRIDGED OPERATION When the amplifier is in Bridged mode operation, both the left and right channels are combined for a higher power mono output. For bridged amplifier operation, turn off the power to the amplifier and connect an 8-ohm minimum load to the Speaker B output. Following the Bridge mode markings in red on the back of the amplifier: Connect the negative lead (-) of the speaker cable to the R+ terminal. Connect the positive lead (+) of the speaker cable to the L+ terminal.
R1250MC AMPLIFIER POSSIBLE SYSTEM CONFIGURATION The R1250MC can be configured as the main amplifier for an audio distribution system or home theater system. When used with an audio distribution preamp, each zone can independently drive one of several different sources by using each zone's individual line audio inputs, or a pair of zones can be bridged to create a higher powered zone.
R1250MC AMPLIFIER SPECIFICATIONS Single Zone Maximum Output Power: (0.1 %THD+N; f=1 kHz) 50W per channel, 2 channels at 8 ohms 80W per channel, 2 channels at 4 ohms 140W at 8 ohms, 2 channels bridged All Zones Continuous Output Power: 35W per channel, 12 channels at 8 ohms 50W per channel, 12 channels at 4 ohms 100W at 8 ohms, each zone bridged THD+N: <0.05% from 20Hz to 20kHz Signal-to-Noise Ratio: >100dB Frequency Response: 20Hz to 20KHz +/- 0.
R-Series R1250MC Power Amplifier User's Manual 5 Forbes Rd. Newmarket, NH 03857, USA Tel 603.659.5170 • Fax 603.659.5388 e-mail: tech@russound.
