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SAFETY INSTRUCTIONS 6. Cleaning - The appliance should be cleaned only as recommended by the manufacturer. From time to time you should wipe off the front and side panels and the cabinet with a soft cloth. Do not use rough material, thinners, alcohol or other chemical solvents or cloths since this may damage the finish or remove the panel lettering. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CONSIGNES DES ECURIT EIMPORTANTES 9. Ce symbole << d'eclair >> s'applique aux materiaux non isoles presents dans votreappareil et pouvant causer un choc electrique. Pour assurer Ia securite des membresde votre famille, veuillez ne pas enlever le couvercle de votre pord.uit.
PRODUCT OVERVIEW Introduction The Russound D250LS is a 2-channel power amplifier with automatic local source switching capability. The D250LS allows a local source (e.g., PC or TV in the bedroom) to automatically override the speakers in that particular zone of a distributed audio system. This can be accomplished with a variety of input/ trigger options for versatility in many different applications. The D250LS is rated at 50 watts per channel into 8 ohms and 75 watts per channel into 4 ohms.
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FRONT AND BACK PANEL FEATURES Power LED Default Input On start-up, the first LED lights red to show power on. When the amplifier goes into standby, the LED will light amber. Default Input is a pass-through input for the whole-house system. If no signal is input to the "Line In" or the "Amplified In," the Default input will be connected directly to the A and B speaker output. Power Switch Turns the amplifier on/off.
INSTALLATION OPTIONS The D250LS amplifier can be set on a tabletop or wall-mounted with screws or hook and loop tape. Rack-mounting ears are included to install either one D250LS in a 1U space or two units in a 1U space. Wall Mounting The amplifier comes with two wall mounting brackets and attachment screws. There are two attachment locations on each side of the amplifier for more mounting options. Hook and loop tape can be used as well.
LOCAL SOURCE SYSTEM CONFIGURATI ON The D250LS can be used as a single-source two-channel zone amplifier, or as a local-source amplifier that automatically switches between a default source (e.g., a whole-house audio distribution system) and a local source (e.g., a television set in the bedroom or a PC in the office). / _....../"'/ / / AN RCA Cables .-------1 .
BRIDGED OPERATION When the amplifier is in bridged mode operation, both the left and right channels are combined for a higher powered 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.
DUAL UNIT SETUP The D250LS can be used in a side-by-side configuration using the optional rack mounting kit. This feature makes it easy to add amplification to two controllers or two zones (e.g., on the MCA-CS controller). The example shown features two D250LS amps connected to an MCA-CS, zones 7 and 8. One amp adds power through bridged mode for an outdoor zone. The other amp powers a pair of speakers in a zone for normal operation.
TECHNICAL SPECIFICATIONS /WARRANTY D250LS Amplifier Continuous Output Power: SOW per channel at 8 ohms 75W per channel at 4 ohms 150W at 8 ohms, 2 channels bridged Distortion THD+N: <0.3% from 20Hz to 20kHz for SOW into 8 ohms <0.05o/o from 20Hz to 20kHz for 1W into 8 ohms Signal-to-Noise Ratio: > 112dB A-weighted Channel Separation: >60dB@ 1 kHz Frequency Response: 20Hz to 20KHz+/- 0.4dB (<0.
D250LS 2-Channel Power Amplifier with Local Source Switching Installation Manual
Thank you for purchasing your Russound amplifier from Crutchfield. The manufactures warranty for this amplifier is 2 years, however thanks to our partnership with Russound, this has been extended by Russound to 3 years from the original date of purchase. During this timeframe Crutchfield will, at Crutchfield’s sole discretion, exchange the amplifier if it is found to be defective.
