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Reference 150 SE

H I G H

D E F I N I T I O N

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Summary of Contents for Reference 150 SE

Page 1: ...Reference 150 SE H I G H D E F I N I T I O N ...

Page 2: ......

Page 3: ...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 appropriate break in period to fully appreciate the benefits this amplifier will provide to your system After reading the user guide if you have any further questions regarding your amplifier contact your deal...

Page 4: ...tors 9 Output Connectors 9 Matching 9 Remote Turn on 10 A C Power Connection 11 Operation 12 Front Panel 12 Start Up 13 Shut Down 13 Break in 13 Output Tube Bias Adjust 14 Hour Counter 14 Maintenance 15 Vacuum Tubes 15 Servicing 15 Cleaning 15 Disposal and Recycling Guidelines 15 Fuse Values and Locations 16 Warranty 17 Specification 18 Contents Cooling Fan Speed Adjustment 14 ...

Page 5: ...ar of this unit must be accessible for emergency power disconnect If the unit is to be operated in an enclosure such as an equipment rack make certain that adequate airflow above and to each side of the unit is provided and ensure that the ventilation fans on the back panel are not obstructed For continued protection against fire hazard replace the fuse only with the same type and rating as specif...

Page 6: ...ng to the following instructions Remove all screws fastening the top cover Carefully 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 matching socket takingcareto key thetubepinstothesocket holes Retain the foam blocks with other packing materials for possible fu...

Page 7: ... that adequate airflow above and to each side of the unit is provided The ambient operating temperature should never exceed 86 F or 30 C Improper installationwillcauseprematuretubefailure and will affect your warranty as well as the service life of the unit It is normal for a vacuum tube power amplifier to run quite warm and if used for prolonged periods hot to the touch All components within are ...

Page 8: ...ON DO NOT OPERATE WITH COVERS REMOVED UNIT CONTAINS VOLTAGES WHICH MAY BE HAZARDOUS WARNING RISK OF HAZARDOUS ENERGY MAKE PROPER SPEAKER CONNECTIONS SEE OWNERS MANUAL REFERENCE 150 STEREO AMPLIFIER PLYMOUTH MINNESOTA MADE IN U S A RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION IN OUT 12V REMOTE TURN ON LEFT INPUT RIGHT INPUT 0 4 8 16 0 4 8 16 900W MAX 50 60 HZ 7A FUSE SLO BLO T4A 230V Left and Right X...

Page 9: ...n the case of speaker systems with significant variations in impedance throughout the frequency spectrum such as most electrostatic types determine the best impedance match empirically for best overall sonic results Connect the Reference 150 SE input to the preamplifier or electronic crossover using only the highest grade of audio interconnect cables To avoid sonic degradation use the shortest pra...

Page 10: ...hould be connected to the 12V DC output of the master control system using a continuous 12V DC signal at 12mAperReference150SEforthedurationof amplifier on time Do not use a momentary or data pulse control signal The 12V DC remote jacks have polarity protection so they will not operate if a 12V DC signal is accidentally connected or if the control wires are reversed When the 12V DC remote turn on ...

Page 11: ...amage the loudspeakers Good operatingpracticedictatesthattheamplifier should be turned on last and turned off first in an audio system The Reference 150 SE uses a grounding system that does not require a ground lifter adapter plug on the A C power cord to minimize hum The power cord supplied with the Reference 150 SE has a standard grounding plug to provide maximum safety when properly connected t...

Page 12: ...12 VACUUM TUBE POWER AMPLIFIER REFERENCE 150 HIGH DEFINITION R Main Power Switch Front Panel Operation ...

Page 13: ...ier output Switch Reference 150 SE front panel control switch to off Turn off preamplifier and then the associated input source components Break in All quality stereo equipment benefits from a break in period during this time the various components wiring and solder connections change as electrical signals pass through them WhileyourReference150SEwillsound fantastic out of the box it will only imp...

Page 14: ...fy V8 reads 57 73mVDC and finally adjust and measure V10 to read 65mVDC and verify that V12 reads 57 73 mVDC Hour Counter An LCD hour counter of elapsed tube operating time can be viewed through the top cover near the front mounted on the right main circuit board see illustration page 6 This displays accumulated hours of vacuum tube service life If the amplifier is unplugged from A C supply the to...

Page 15: ...orporation at service audioresearch com or call 763 577 9700 You may also initiate a service request by visiting the Audio Research website www 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 damp not wet cloth to remove dust A mild non alkaline soa...

Page 16: ...ses Mains Fuse indicated in BLUE 100 125 V units Bussman MDQ7 slo blo 220 250 V units T4A slo blo High Voltage Fuse indicated in RED 100 125 V units Bussman MDQ4 slo blo 220 250 V units T3 15A slo blo High Voltage Fuse Mains Fuse When changing an internal fuse or any time the cover of the unit is removed make certain the main power is disconnected from the A C line Be very careful working around c...

Page 17: ...nited States 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 Warranty may vary from country to country Warranty service should normally be obtained from the importing retailer or distributor from whom the product was purchased In the unlikely event th...

Page 18: ... 8 ohms Input Impedance 300K ohms Balanced Output Polarity Non inverting Balanced input pin 2 IEC 268 Output Taps 16 ohms 8 ohms 4 ohms Output Regulation Approximately 0 6dB 16 ohm load to open circuit Damping factor approximately 14 Overall Negative Feedback 14dB Slew Rate 13 volts microsecond Rise Time 2 0 microseconds Hum Noise Less than 0 1mV RMS 114dB below rated output IHF weighted input sho...

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Page 20: ...udio 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 North Plymouth MN 55447 www audioresearch com 95000006 A ...

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