User manual RUSSOUND R290DS

[. . . ] Grounding or Polarization - Precaution should be taken so that the grounding or polarization means of an appliance is not defeated. Power Cord Protection - Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, receptacles, and the point where they exit from the appliance. Main Power Disconnect - The power switch is a singlepole switch. When the switch is in the "Off" position, the appliance is not completely disconnected from the main power. [. . . ] 8 System Configuration - External Volume Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Russound R290DS Installation Manual 3 pRODUCT OVERVIEW Introduction The Russound R290DS is a 2-channel 90 watt dual source power amplifier with auto-source switching. It features Primary and Secondary audio line inputs with a loop out to another zone, receiver, or device from the Primary source. A signal only available as a speaker input can be connected and assigned as either the primary or secondary source. This amplifier can be used for power upgrades in specific zones, for large speaker selector or volume control systems and for long series-parallel speaker runs (e. g. , large outdoor zones). The R290DS is rated at 90 watts per channel into 8 ohms, and 110 watts into 4 ohms. With the Stereo/Bridge Mono switch in the Bridge Mono position, both amplifier channels are combined for a higher powered mono output. In Bridge mode the R290DS is rated at 220 watts of power into a single 8 ohm load. Each amplifier output channel incorporates robust protection circuitry for safety and reliability under extreme circumstances. The 12V Trigger In/Out allows the R290DS to be activated by other electronics or to activate other electronics via a 3. 5 mm mini phone plug cable. Protection Circuitry Special circuitry has been designed into the amplifier to safeguard under a short-circuit condition. A faulty speaker can also cause a short circuit condition. The front panel LED illuminates orange when the amplifier is in short circuit protection. If this fault condition occurs, turn off the amplifier and check speakers for short circuit conditions when appropriate. Rack Mounting The R290DS amplifier can be rack mounted using the included rack-mount ears and hardware to attach the ears to the amplifier. The amplifier will take two rack spaces with the feet removed. If mounted in a rack , one open rack space above and below is recommended to allow for ventilation and heat dissipation. Rack Ear Screw Holes Thermal Protection All Russound amplifiers are designed with special circuitry to safeguard the amplifier under a thermal overload condition. Thermal protection mode will only engage when the unit has been run at high volume for extended periods of time without adequate ventilation and/or when speaker impedances are below the minimum levels for the amplifier. In thermal protection mode the amplifier will automatically stop output and the status indicator LED will go OFF. If this fault occurs, turn off the amplifier, and check that the speaker impedance rating is above the minimum rating. Also check for adequate ventilation around the amplifier and make adjustments if necessary. Once the unit has cooled to safe operating temperatures, the amplifier may be powered back on. + + Side View Rack Ear Side View Rack Ear Front View 4 Russound R290DS Installation Manual FRONT AND REAR pANEL Status Indicator LED Red - Standby Green - Active Orange -Short Circuit Protection Primary Input/Output Secondary Input Stereo / Bridge Switch Power Switch Left and Right Channel Controls 12V Trigger In / Out Delay Time Speaker Level Line Input Switch Speaker Level Input (Screw Down Connector) Speaker Output Power Inlet & Fuseholder Voltage Selector Russound R290DS Installation Manual 5 SYSTEm CONFIGURATION - STEREO mODE The R290DS has dual source capability. If two sources are used, connect the source you want to have priority to the Primary input and the other source to the Secondary input. Whenever the Primary source is active, that signal will take priority over the distributed audio signal on the Secondary line. [. . . ] To return for repairs, the unit must be shipped to Russound at the owner's expense, along with a note explaining the nature of service required. Be sure to pack the unit in a corrugated container with at least three (3) inches of resilient material to protect the unit from damage in transit. Before returning a unit for repair, call Russound at (603) 659-5170 for a Return Authorization number. Write this number on the shipping label and ship to: Russound ATTN: Service 5 Forbes Road Newmarket, NH 03857 Due to continual efforts to improve product quality as new technology and techniques become available, Russound/FMP, Inc. [. . . ]