Russound R275HC manual

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Table of contents for the manual

  • Page 1

    R-Series R275HC 2-Channel Power Amplifier User’ s Manual[...]

  • Page 2

    2 “WARNING” “ TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.” “CAUTION” “ TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER - SERVICEABLE P ARTS INSIDE. REFER SERVICING TO QUALI- FIED SERVICE PERSONNEL. The lightning flash with arrowhead symbol, within an equilateral tr[...]

  • Page 3

    3 INTRODUCTION The Russound R275HC is a 2-channel high-current power amplifier capable of driving low impedance loads and incorporates selectable volume control p r o t e c t i o n c i r cuitry . This amplifier can be used for power upgrades in specif- ic zones, for lar ge speaker selector or volume contr ol systems and for long series-parallel spe[...]

  • Page 4

    4 1 2 3 4 3 6 5 8 Power Switch: T urns the amplifier on/off. This switch does not disconnect the main power feed from the amplifier; this r equires that the power cor d be unplugged from the outlet. Low Cut (High Pass) Switch: Enables/disables the filter that reduces very low fr equency ener gy and protects autoformer-based volume contr ol/speaker [...]

  • Page 5

    5 Audio RCA Cable from sourc e (-)Negative Speaker cable (+)Positiv e 8-ohm Speaker R275HC AMPLIFIER BRIDGED OPERA TION 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 [...]

  • Page 6

    6 POSSIBLE SYSTEM CONFIGURA TIONS The R275HC can be configured for lar ge autoformer- based volume control systems/speaker selectors. When using the R275HC for this application, set the Low Cut switch to the “On” position. T urning this filter “on” enables a filter that reduces the low fr equency ener gy which protects the volume contr ols/[...]

  • Page 7

    7 SPECIFICA TIONS Stereo Continuous Output Power: 75W per channel at 8 ohms 100W per channel at 4 ohms Bridged Output Power: 200W at 8 ohms, 2 channels bridged THD+N: <0.05% from 20Hz to 20kHz Signal-to-Noise Ratio: >100dB A-weighted Frequency Response: 20Hz to 20KHz +/- 0.3dB Input Sensitivity: 70mV for 1W at 8 ohms 610mV for 75W at 8 ohms I[...]

  • Page 8

    5 Forbes Rd. Newmarket, NH 03857, USA T el 603.659.5170 • Fax 603.659.5388 e-mail: tech@russound.com 28-1167 03/22/05 R-Series R275HC 2-Channel Power Amplifier User’ s Manual[...]