Vista i84 User Manual Download Page 1 | Manualshive

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a brand of ENG Vista, Inc.

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500-0010MR2

http://www.vista-audio.com/

Rev. 2

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Summary of Contents for i84

Page 1: ... ahead a brand of ENG Vista Inc m mo od de el l i i8 84 4 I In nt te eg gr ra at te ed d T Tu ub be e A Am mp pl li if fi ie er r U Us se er r s s M Ma an nu ua al l 500 0010MR2 http www vista audio com Rev 2 1 ...

Page 2: ...part of your audio system Before using this amplifier please take the time to carefully read and understand the safety instructions and operating procedures Becoming familiar with all details about your amplifier will ensure safe usage and reliable operation Especially important is the section on tube layout which gives information on tube replacement The effort you invest now will be well rewarde...

Page 3: ...onnector Always use power cord with adequate wire cross section and an electrical outlet that is grounded If you do not know whether the outlet is grounded consult your electrician or local power company 6 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched Pay particular attention to cords at plugs convenience receptacles and where they...

Page 4: ...he wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a dry cloth for cleaning Do not use any type of abrasive pad scouring powder or solvent such as alcohol or benzene 2 Tube replacement Electron tubes have their life in the 1000 2000 hrs range We strongly recommend replacing the output tubes at 12 18 months interval depending on your listening habits and signal tubes ...

Page 5: ...ould make certain the unit is disconnected from the AC outlet and that the tube has cooled down Inspect the tube for cracks and physical damage Make sure that the pins are straight If you need to straighten the pins be very careful as it may cause the glass envelope to break causing the tube to lose the vacuum and fail as soon as the amplifier is powered on Carefully align the pins with the socket...

Page 6: ... since that may damage the transformers Speaker s minus terminal should be connected to the speaker terminal marked as zero 0 and positive terminal should be connected to the terminal that corresponds to the speaker s nominal impedance 4 or 8 ohms If your speaker has nominal impedance of 6 ohms you can connect it to either of the two outputs You should try both and select the one that performs bet...

Page 7: ...level Turning the control knob clockwise increases the sound level and turning it counterclockwise decreases the sound level Back Panel Power Switch Press the power switch to I turn the power on Within 10 20 seconds as the heaters reach operating temperature the tubes will begin to glow a soft orange light Press the power switch to 0 to turn the unit off As the heaters cool off the orange glow wil...

Page 8: ... is powered on possibly damaging the amplifier as well Also make sure to inspect the tube sockets for cracks and pin inserts Carefully align the pins with the socket and gently insert the new tube Never force a tube into a socket Should you decide to buy replacement tubes from Vista Audio rest assured that they were fully tested before the shipment Only EL84 power tubes can be used Regarding pream...

Page 9: ...0kHz Inputs CD Tuner Aux Input sensitivity 1 0Vpk Input impedance 50 kohm Output speaker impedance Speaker terminals for 4 and 8 ohms Tubes 2 x ECC83 4 x EL84 Input Voltage 120V 60Hz or 230V 50Hz as marked on the real plate Maximum input current 2A at 120V 1A at 230V Dimensions Width x Depth x Height 14 x 12 x 6 360mm x 300mm x 160mm Weight 16 lbs 7 5kg 9 ...

Page 10: ...r way you will need to present the original bill of sale to establish the date of purchase shipment Please do not ship your equipment without our prior authorization You are responsible for transporting your unit or arranging for its transportation You must pay the initial shipping charges but we will pay the return shipping charges if the repairs are covered by the warranty When returning your un...

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