Russound DPA-4.8 Stereo Amplifier User Manual
Contents
1. sus ___ BRGD MONO m 2 NE 5 E MUTING DELAY TIME WVBRGD MONO MUTING DELAY TIME KA SPEAKERS rq SPEAKERS the four stereo pairs can be bridged to two stereo pairs for higher output power The DPA 4 8 power output is 50 watts per channel into 8 ohms and 75 watts into 4 ohms Bridged adjacent outputs provide 100 watts of power into 8 ohms and 150 watts of power into 4 ohms All this power is backed by two high output toroidal transformers Each amplifier out put channel incorporates thermal short circuit protection and Russound s unique Dynamic Clipping Sensor that allows for better headroom and volume without clipping or distortion that is normally heard in most amplifiers The Russound DPA 4 8 amplifier is built with pride Fidelity reliability and quality are the primary objective Russound products are guaranteed to provide years of enjoyment 4 ZONE 8 CHANNEL AMPLIFIER 4 SERIAL INSTRUCTIONS WARNING SHOCK HAZARD DO NOT OPEN SPEAKERS LINE _ y E INPUT e 20 LINE WBRGD MONO 22552 VES MUTING DELAY TIME SPEAKERS eo BUS GAIN R LINE IS RISQUE DE CHOC INPUT 120VAC 60Hz 5A 5 BRGD MONO 2 4 e MUTING DELAY TIME DPA 4 8 manual 11 1 02 4 14 PM Page 4 POSSIBLE SYSTEM CONFIGURATIONS The DPA 4 8 can be configured as an audio distribution sys tem or used a2. DPA 4 8 manual 11 1 02 4 14 PM Page 1 2 R Russound 4 Zone 8 Channel Amplifier DPA 4 8 Instruction Manual DPA 4 8 manual 11 1 02 4 14 PM Page 2 WARNINGS RISK OF ELECTRIC SHOCK DO NOT OPEN 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 PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning flash with arrowhead symbol within an equilateral trian gle is intended to alert the user to the presence of uninsulated dan gerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance Double Insulated when servicing use only identical replacement parts SAFETY INSTRUCTIONS 1 Read Instructions All the safety and operating instructions should be read before the appliance is operated 2 Retain Instructions The safety and operating instructions should be retained for future reference 3 Heed Warnings All warnings on the appliance in the operating instructions should be adhered to 4 Follow Instructions All operating and user instruc
3. EL LINE INPUT LINE INPUT LEFT CHANNEL VOLUME CONTROL RIGHT CHANNEL VOLUME CONTROL SET THIS SWITCH TO BRGD MONO SET THIS SWITCH TO BRGD MONO FOR BRIDGING CD STEREO FOR BRIDGING V BRGD MONO 4 4 1 8 MUTING MUTING DELAY TIME DELAY TIME SPEAKERS SPEAKERS LEFT SPEAKER RIGHT SPEAKER EIGHT OHM e 6 9 DPA 4 8 manual 11 1 02 4 14 PM Page 7 SPECIFICATIONS WARRANTY Audio power output Continuous 50W 2 8 ohms The Russound DPA 4 8 is fully guaranteed for two 2 years from the date of pur chase against all defects in materials and workmanship During this period Russound 75W 4 ohms will replace any defective parts and correct any defect in workmanship without charge for either parts or labor For this warranty to apply the unit must be installed Frequency response 20HZ to 20KHZ 0 3dB and used according to its written instructions If service is necessary it must be per formed by Russound The unit must be returned to Russound at the owners expense Total harmonic distortion 0 05 8 Ohm 075 4 Ohm and with prior written permission Accidental damage and shipping damage are not considered defects under the terms of the warranty Russound assumes no responsi bility for defects resulting from abuse or servicing performed by an agency or per son not specifically authorized in writing by Russound Damage to or destruction of components due
4. WBRGD MONO IEAA 2244 EA 2 2 2 2 MUTING Y MUTING Y MUTING MUTING DELAY TIME DELAY TIME DELAY TIME DELAY TIME iq SPEAKERS nd SPEAKERS d SPEAKERS 1 SPEAKERS DPA 4 8 manual 11 1 02 4 14 PM Page 5 RYRussound FRONT PANEL Rack Mounting The DPA 4 8 amplifier can be rack mounted The amplifier will take 3 rack spaces Power Switch Turns on the main power for the amplifier When the power is on the LED will be illuminated Zone Indicator LEDs Zone one to four will be illuminated when the zone is in the active mode When the zone is mute or inactive the LED will not be illuminated BACK PANEL CONNECTIONS Main Bus Input Output This is vines ein Bus used when the input audio signal will be used by more than one eo zone The output is to loop out to another DPA 4 8 or other amplifiers MAIN BUS MAIN BUS L Line Input The line audio input at each zone is the left and right dedi cated input for that zone This is a sensing input that will activate the zone when an audio signal Is present When there is no audio the zone will go into standby see Muting Delay Time 2 NPUT Bus Line Switch Selects the Line audio input or the Main Bus input for each zone When the Bus 8 is selected the zone will amplify the audio on the Main Bus input When line is selected the zone will amplify the audio at the line input for that zone Gain Controls Left and Righ
5. ervicing should be referred to qualified service personnel 18 Avoid using a telephone other than cordless type during an electrical storm There may be a remote risk of electric shock from lightning 19 Do not use the telephone to report a gas leak near the leak 20 The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids such as vases shall be placed on the apparatus PRECAUTIONS 1 Do Not Touch The DPA 4 8 With Wet Hands Do not handle the DPA 4 8 or power cord when your hands are wet or damp If water or any other liquid enters the DPA 4 8 cabinet take the DPA 4 8 to qualified service personal for inspection Location of the DPA 4 8 Do not expose the DPA 4 8 to direct sun light or heating units as the DPA 4 8 internal components temperature may rise and shorten the life of the components Avoid damp and dusty places po Care 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 CONTENTS Safety ANSUMUICUIONS aae unie d iade 2 id bue 3 Possible System Configuration 4 dtc P 5 Back Panel Connections ua ss aene c omae 5 Bridged PT 6 SPECIA
6. ot 7 7 Conforms to ANSI UL 6500 Certified to COA C222 LISTED No1 94 Russound DPA 4 8 Tested to Comply with FCC Standards FOR HOME OR OFFICE USE DPA 4 8 manual 11 1 02 4 14 PM Page 3 INTRODUCTION Congratulations on your recent purchase of the Russound DPA 4 8 8 channel amplifier The DPA 4 8 high current high quality amplifier is the heart of the home theater or multi zone system The DPA 4 8 8 channel amplifier is capable of amplifying four stereo line level sources CD players tape decks preamplifiers tuners etc simultaneously in multi zone multi source installations The eight amplifiers are arranged in pairs to provide four stereo amplifiers With separate gain controls for each channel sound levels can be preset to accommodate most rooms The Main Bus Input allows for two or more stereo amplifiers to share the same audio source With the stereo mono selector in the mono position two amplifiers can serve as mono outputs In the mono position kRYRussound 1 2 MAIN BUS INPUT 3 9 N R LINE INPUT LINE Gul GAIN 2 RIRussound DPA 4 8 NEWMARKET NH USA DESIGNED IN THE USA MADE IN TAIWAN MINIMUM LOAD IMPEDANCE 4 OHM SEE MANUAL FOR BRIDGED MONO OPERATION II MAIN BUS OUTPUT NUM LINE e BUS SR STEREO LINE c INPUT
7. pliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance 11 Grounding or Polarization The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated 12 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 13 Cleaning The appliance should be cleaned only as recommended by the manu facturer 14 Non use Periods The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time 15 Object and Liquid Entry Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through the openings 16 Damage Requiring Service The appliance should be serviced by qualified serv ice personnel when A The power supply cord or the plug has been damaged or B Objects have fallen or liquid has been spilled into the appliance or C The appliance has been exposed to rain or D The appliance does not appear to operate normally or E The appliance has been dropped or the enclosure is damaged 17 Servicing The user should not attempt to service the appliance beyond that described in the operating instructions All other s
8. s the main amplifier for a home theater system When used with an audio distribution preamp each zone can independently drive one of several different sources by using each zones individual line audio inputs As a home theater amplifier the DPA 4 8 output can be bridged to provide high power out for the front channel WARNING SHOCK HAZARD DO NOT OPEN Conforms to ssoun PR AZ AVIS RISQUE DE CHOC ELECTRIQUE NES PAS OUVRIR G D GD NEWMARKET NH US A ACTO AP 48 P R u 47 CSA C22 2 1 treo 68835 24 UNIT INTERFACE A IOCK Di OPEN UNIT INTERFACE B _ 15 NNNM 60Hz 10A Max V GDID2YV D2 V GDID2YV G S TfV G S 5 S T L kerani __ __ 2 _ __ KEYPAD 4 PAGE 2 PAGE 3 PAGE 4 MAIN Bus MAIN BUS INPUT 3 OUTPUT gt H Russound DPA 4 t KER A AND B OUTPUTS ARE USED D PA 4 8 L EWMARKET NH USA NLY A OR B OUTPUT IS USED R R i A DESIGNED IN THE USA E TION INSTRUCTIONS N WARNING SHOCK HAZARD DO NOT OPEN Avis Risque DE CHOC LINE lt LINE LINE gy INPUT ELECTRIQUE NES PAS OUVRIR INPUT INPUT INPUT LINE a T LINE EL uj 120VAC A Coi 60Hz ssl GAIN GAIN GAIN rus GAIN ER LR R R OR STEREO STEREO STEREO STEREO ___ BRGD MONO ___ BRGD MONO WBRGD MONO
9. t gain controls independently adjust the sound level for each channel When used in the bridge mode only the right control is used Stereo Mono Switch This selects stereo or mono for the speaker outputs In the Mono H position each Left and Right output is Mono The Mono selection will also be used to select operation for bridged mode When Mono is selected the inputs are summed and when in stereo the inputs remain independent to pro vide a stereo output See Bridged Operation pg6 for further details SPEAKERS CD STEREO BRGD MONO Speaker Outputs 4 ohm or 8 ohm speakers can be connected For Bridge amplifier operation con nect the of the speaker to the R of the amplifi er and of the speaker to the L of the amplifier R L Lt Muting Delay Time Muting delay can be adjusted from about 2 minutes to 10 minutes When an audio signal is not present this delay setting will B automatically put the amplifier zone into standby n mode after the preset period of time 3 Power Iwo heavy duty toroidal transformers power the DPA 4 8 Each transformer powers 2 stereo zones The voltage setting for the AC input is set at the factory For operation of either 115VAC 60Hz or 230VAC 50Hz Reference the voltage rating on the back panel Includes detachable 2 terminal power cord 120VAC 60Hz 5A DPA 4 8 manual 11 1 02 4 14 PM Page 6 BRIDGED OPERATION LEFT CHANNEL RIGHT CHANN
10. tions should be followed 5 Water and Moisture The appliance should not be used near water for exam ple near a bathtub washbowl kitchen sink laundry tub in a wet basement or near a swimming pool and the like 6 Carts and Stands The appliance should be used only with a e cart or stand that is recommended by the manufacturer An 4 appliance and cart combination should be moved with care Quick stops excessive force and uneven surfaces may cause the appliance and cart combination to overturn 7 Wall or ceiling Mounting The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer 8 Ventilation The appliance should be situated so that its location or position does not interfere with its proper ventilation For example the appliance should not be situated on a bed sofa rug or similar surface that may block the ventila tion openings or placed in a built in installation such as a bookcase or cabinet that may impede the flow of air through the ventilation openings Place the DPA 4 8 in a well ventilated location leaving at least 2 inches bcm of clear ance on all sides top and rear of unit for air flow If ventilation is blocked the DPA 4 8 may overheat and malfunction 9 Heat The appliance should be situated away from heat sources such as radia tors heat registers stoves or other appliances including amplifiers that pro duce heat 10 Power Sources The ap
11. to improper use voids the warranty In these cases the repair will Input sensitivity 400mV line Input impedance 22k Line Input be made at the owners expense To return for repairs the unit must be shipped to Russound at the owners expense along with a note explaining the nature of the Signal to noise ratio 85dB service required Be sure to pack in a corrugated container with at least 3 inches of resilient material to protect the unit from damage in transit Auto off delay time 2 to 10 minutes Primary fuse T3 15 250V Power requirements Factory set for 110 VAC 60Hz or 240 VAC 50Hz IEC 320 type connector with 2 terminal detachable power cord For 240VAC operation use a power cord not supplied rated for 240VAC 4 amps or higher Weight 32 Ibs Dimensions 19 W x 13 5 D x 5 25 H DPA 4 8 manual 11 1 02 4 14 PM Page 8 HRussound 5 Forbes Rd Newmarket NH 03857 USA 603 659 5170 Fax 603 659 5388 e mail tech russound com wane the igi Ena cM Nec tien Come visit us at
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