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H I G H

D E F I N I T I O N

GSPre

Stereo Preamplifier

User Guide

Содержание GSPre

Страница 1: ...H I G H D E F I N I T I O N GSPre Stereo Preamplifier User Guide...

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Страница 3: ...er to begin listening however please take a few minutes to read through this guide for useful information concerning the operation of your new preamplifier Once installed please allow an appropriate b...

Страница 4: ...Off Tube Hours 10 11 11 11 12 13 15 16 16 17 Maintenance Servicing Cleaning Disposal and Recycling Guidelines Warranty Specifications 18 18 18 19 20 5 6 7 8 9 9 9 9 9 9 Warnings Installation Before O...

Страница 5: ...oes not disconnect all power from this unit This unit is in sleep mode when not on This unit is RoHS compliant The GSPre also has automatic muting to help protect system components in the event of low...

Страница 6: ...s head screwdriver to loosen the fastening screws remove the top cover and set aside After removing the top cover and the vacuum tubes packed in protective foam see the accompanying illustration for i...

Страница 7: ...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...

Страница 8: ...8 Connections Back Panel Connections A C Power Connector IR Input 12V Trigger RS 232 Connector Fuse Holder Inputs Main Outputs...

Страница 9: ...f 0 5 mV to 2 5 mV Output Connectors One pair of balanced and one pair of single ended main output connectors are provided A C Power Connection It is important that the GSPre be connected via its supp...

Страница 10: ...10 Operation Input Select Volume Control Cartridge Impedance Front Panel Controls and Displays Menu Button Power On Off Function Indicators Function Buttons side panel Headphone Output...

Страница 11: ...ay until the warm up cycle is complete Select input source and adjust the volume as necessary Shut Down Activate MUTE function Turn off power amplifier s Press Power switch to off Turn off input sourc...

Страница 12: ...indicated by active display window The GSPre requires approximately 40 seconds to warm up this time is required to stabilize the vacuum tubes See Start Up Procedure on page 11 for details Menu The men...

Страница 13: ...lifier or speakers Remote Only Functions In addition to the controls found on the front panel the remote control offers access to the following additional features of the GSPre Display Brightness Adju...

Страница 14: ...or can help with certain room anomalies To adjust the balance press the BAL L or BAL R button on the remote The balance scale will appear at the bottom the display and the indicator block will move in...

Страница 15: ...the volume knob on the front panel or using the volume up down buttons on the remote will adjust the settings of that particular selecton After making the appropriate change pressing the MUTE button w...

Страница 16: ...show OKAY before reverting back to the normal operation screen Note The auto shutdown feature is not in the signal path of the preamplifier and has no deleterious sonic effect to music playback Proce...

Страница 17: ...proximately 4 000 hours the vacuum tubes should be replaced and the tube hours counter should be reset to zero To reset the tube hours counter press the MENU button until TUBE HOURS is shown Turn the...

Страница 18: ...ning To maintain the new appearance of this preamplifier occasionally wipe the front panel and top cover with a soft damp not wet cloth to remove dust A mild non alkaline soap solution may be used to...

Страница 19: ...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 20: ...ed 75k SE Phono impedance programmable 100 200 500 1000 or 47k w 200pF unbalanced Output Impedance 1kHz 500 Balanced 250 SE 0 05 Headphone SE Maximum Input Line 12V RMS Balanced 6 0V RMS SE Phono 11mV...

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Страница 22: ...14 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...