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Summary of Contents for Audio Research VT80
- Page 1 VT80 Stereo Power Amplifier...
- Page 3 Thank you for choosing the VT80 to be a part of your high performance music listening system. Since 1970, Audio Research has been creating some of the world’s finest audio equipment. Each piece is handcrafted in Minnesota and has been designed to provide many years of listening enjoyment.
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Page 4: Table Of Contents
Caution ............15 Installation ...........6 Cleaning ............15 Top Plate ............6 Disposal and Recycling Guidelines ..... 15 To remove the top cover (for VT80 units Warranty............. 16 sold outside of North America) ...... 7 In your system ..........7 Specification ..........17 Connections ..........8... -
Page 5: Warnings
Refer servicing to your Save all packaging in a dry place away from authorized Audio Research dealer or other fire hazard. Your VT80 amplifier is a precision qualified personnel. electronic instrument and should be properly cartoned any time shipment is made. You... -
Page 6: Installation
Installation Top Plate VT80 TOP VIEW KT120 KT120 Vacuum Tubes Vacuum Tubes 6H30 6H30 Vacuum Tube Vacuum Tube... -
Page 7: To Remove The Top Cover (For Vt80 Units Sold Outside Of North America)
Plate illustration to install the tubes for your of 6 inches (16 cm) on top and an open back. VT80 in their proper locations in the chassis. During operation, if there are doors on the Note that the numbers written on each tube cabinet, they must remain open. -
Page 8: Connections
Connections Back Panel Controls and Connections VT80 REAR VIEW Inputs Defeat/Auto Shut Off Balanced/Single Ended Inputs (right channel) Switch Switch (left channel) Fuse Reset Button/ A.C. Mains RS-232 Speaker Terminals Speaker Terminals Hours Meter Connectors Connector Trigger (right channel) (left channel) -
Page 9: Input Connectors
Proprietary, heavy-duty output terminals the wire that connects to the ‘0’ terminal are provided on the rear panel for 4 or on the VT80. Connect the red or ‘+’ speaker 8-ohm speaker impedance loads. Using terminal to the wire that connects to the high-quality speaker cables, securely fasten ‘4’... -
Page 10: A.c. Power Connection
Only from a qualified technician. Caution should use the power switch on the front of the VT80 be taken before using custom after-market for On/Off control of the amplifier, or the power cords: they must be at least 12-gauge 12V start-up trigger for remote installations. -
Page 11: Remote Turn-On
Connections If electronic crossovers or other AC powered RS-232 Control equipment is used with the VT80 it may be The VT80 has an RS-232 connector on the necessary to use ‘ground lifter’ adapters back panel, in the event the amplifier is... -
Page 12: Operation
Operation Front Panel Controls and Displays VT80 FRONT VIEW POWER Power On/Off L.E.D. On/Off... -
Page 13: Start-Up
LCD counter. • Turn on preamp and all other components; The KT120 power vacuum tubes in your VT80 mute preamp output. have an average life span of approximately 2000 hours. -
Page 14: Auto Shut Off
Operation Auto Shut Off compensates to maintain the proper bias as The VT80 is equipped with an auto shut off the tubes age. Auto-bias sets idle current at feature, designed to turn the amplifier off 65ma per tube. after two hours of no signal being present at the output of the amplifier. -
Page 15: Maintenance
Customer Support Department of It is recommended that you replace the Audio Research Corporation at service vacuum tubes of your VT80 in sets. All of the @audioresearch.com. You may also initiate tubes in your amplifier have been matched a service request by visiting the Audio to have similar operating characteristics, Research website (www.audioresearch.com) -
Page 16: Warranty
3-Year Limited Warranty or a beyond the ability of the importer is required, 90-Day Limited Warranty (vacuum tubes). Audio Research will fulfill the terms and This Limited Warranty initiates from the date conditions of the Limited Warranty. Such of purchase, and is limited to the original product must be returned at the purchaser’s... -
Page 17: Specification
Specifications POWER OUTPUT: 75 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at 75 watts, below 0.05% at 1 watt. (Note that actual power output is dependent upon both line voltage and ‘condition’ i. e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) POWER BANDWIDTH: (-3dB points) 7Hz to 60kHz. - Page 18 3900 Annapolis Lane North Plymouth, MN 55447 www.audioresearch.com Specifications subject to change without notice. ©2016 Audio Research Corporation. Reproduction of this document in part or whole is expressly forbidden without written consent from Audio Research Corporation. 95000018 A...
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