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7

In your system 

To insure normal component life and safe 

operation this unit must be operated 

only in an upright position.  Adequate 

airflow and proper cooling can occur 

only if there is no restriction above and 

behind the unit and on either side. 

The special non-marring elastomer feet 

provide adequate spacing and stability 

only on a smooth, hard surface, and 

also assist to isolate the amplifier from 

spurious vibrations. For upright stability 

and best performance, never operate 

the unit while it is sitting on a soft 

surface such as a thick rug or carpet.

Due to its weight, this amplifier must 

be supported on a surface specifically 

rated for such a load.  Check with the 

manufacturer of your support system to 

be sure it is rated to handle this weight.

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.

The ‘ambient’ operating temperature should 

never exceed 120° F or 49° C. Improper 

installation will cause premature tube 

failure 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, however, 

operated at safe, conservative levels 

and will not be improperly affected 

thereby, providing the requirements 

outlined above are adhered to.

Installation

Содержание Reference 75 SE

Страница 1: ...Reference 75 SE H I G H D E F I N I T I O N...

Страница 2: ......

Страница 3: ...u 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 appropr...

Страница 4: ...rs Output Connectors Matching Remote Turn on A C Power Connection 5 6 7 8 9 9 9 10 11 Operation Front Panel Controls and Displays Start Up Shut Down Break in Display Brightness Adjustment Output Tube...

Страница 5: ...ence 75 SE chassis to provide absolute protection from electrical shock The appliance coupler a c power connector at the rear of this unit must be accessible for emergency power disconnect For continu...

Страница 6: ...to the following instructions Installation 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 t...

Страница 7: ...orted on a surface specifically rated for such a load Check with the manufacturer of your support system to be sure it is rated to handle this weight If the unit is to be operated in an enclosure such...

Страница 8: ...ING RISK OF HAZARDOUS ENERGY MAKE PROPER SPEAKER CONNECTIONS SEE OWNERS MANUAL WARNING TO PREVENT FIRE AND SHOCK HAZARD DO NOT EXPOSE THIS DEVICE TO RAIN OR MOISTURE UNIT MUST BE OPERATED IN A HORIZON...

Страница 9: ...tortion In 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 be...

Страница 10: ...IN jack should be connected to the 12V DC output of the master control system using a continuous 12V DC signal at 12mA per Reference 75 SE for the duration of amplifier on time Do not use a momentary...

Страница 11: ...the loudspeakers Good operating practice dictates that the amplifier should be turned on last and turned off first in an audio system The Reference 75 SE uses a grounding system that does not require...

Страница 12: ...75 HIGH DEFINITION POWER BIAS V1 R V2 POWER OUTPUT LEFT BIAS OPERATE BIAS V3 V4 BIAS POWER OUTPUT RIGHT OPERATE OPERATE OPERATE Power output and bias meters Main Power Switch Bias Operate Switches Ope...

Страница 13: ...benefits from a break in period during this time the various components wiring and solder connections change as electrical signals pass through them While your Reference 75 SE will sound fantastic out...

Страница 14: ...be made under zero signal conditions after at least 15 20 minutes of uninterrupted stabilization time With the amplifier warmed up and signal set to zero switch the rotary knob to one of the V setting...

Страница 15: ...ation 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 rig...

Страница 16: ...the United 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...

Страница 17: ...dB Bal gain into 8 ohms Input Impedance 300K ohms Balanced Output Polarity Non inverting Balanced input pin 2 IEC 268 Output Taps 8 ohms 4 ohms Output Regulation Approximately 1 0dB 8 ohm load to open...

Страница 18: ...15 Audio 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 L...

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