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Reference 750 SE

H I G H

D E F I N I T I O N

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Summary of Contents for Reference 750 SE

Page 1: ...Reference 750 SE H I G H D E F I N I T I O N...

Page 2: ...2 H I G H D E F I N I T I O N...

Page 3: ...tand you are eager to begin listening however please take a few minutes to read through this guide for useful information concerning the operation of your new amplifier Once installed please allow an...

Page 4: ...onnections 8 Input Connectors 9 Output Connectors 9 Matching 9 A C Power Connection 10 Operation 11 Front Panel Controls and Displays 11 Start Up 12 Shut Down 12 Display Brightness Adjustment 12 Fan 1...

Page 5: ...ded emphasis must be placed on use of your preamplifier s mute switch from a safety standpoint A transient signal burst or pop such as caused by tonearm cueing accidental dropping or brushing of the p...

Page 6: ...arefully remove each vacuum tube from its protective foam and match its location V number written on the base of the tube to the V number printed next to each socket Firmly seat each tube in its match...

Page 7: ...for a vacuum tube power amplifier to run quite warm and if used for prolonged periods hot to the touch All components within are however operated at safe conservative levels and will not be improperly...

Page 8: ...AY BE HAZARDOUS VOLTS SERIAL PLYMOUTH MINNESOTA MADE IN U S A CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE FUSE ONLY WITH SAME TYPE AND RATING 20A FUSE SLO BLO 10A 240V 2200W MAX 50 60...

Page 9: ...best overall sonic results Connect the Reference 750 SE input to the preamplifier or electronic crossover using only the highest grade of audio interconnect cables To avoid sonic degradation use the...

Page 10: ...aneous turn on noises those components might generate which could potentially damage the loudspeakers Good operating practice dictates that the amplifier should be turned on last and turned off first...

Page 11: ...ET CHECK R POWER LINE VOLTAGE V5 V15 V13 V9 CHECK V11 V8 V6 CHECK V4 V10 V12 V16 CHECK V14 POWER OUTPUT BIAS FAN Panel output and bias meter Main Power Switch Fan Speed Front Panel Controls and Displa...

Page 12: ...ergy Not allowing enough time for this process can result in blown fuses or other damage to your amplifier Display Brightness Adjustment The front panel meter display is illuminated with ultra low noi...

Page 13: ...tool in the V2 SET hole in the front panel in same way the V1 tube bias level is adjusted Again press the BIAS switch repeatedly to check V4 V6 V8 V10 V12 V14 and V16 tube bias levels which should all...

Page 14: ...audioresearch com and selecting Service Repair at the top right of the home page Cleaning To maintain the new appearance of this amplifier occasionally wipe the front panel and top cover with a soft d...

Page 15: ...es the authorized importing retailer or distributor has accepted the responsibility for warranty of Audio Research products sold by them The specific terms and remedies for fulfillment of the Limited...

Page 16: ...ng factor approximately 17 Overall Negative Feedback 13dB Slew Rate 20 volts microsecond Rise Time 1 5 microseconds Hum Noise Less than 0 2mV RMS 110dB below rated output IHF A weighted input shorted...

Page 17: ...17...

Page 18: ...dio Research Corporation Reproduction of this document in part or whole is expressly forbidden without written consent from Audio Research Corporation H I G H D E F I N I T I O N 3900 Annapolis Lane N...

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