VAC Avatar Super User Manual
Page 12
Page 12
GENERAL INFORMATION ABOUT TUBES
It is a truth that each brand of tube sounds different in a particular high resolution circuit.
This is because no two manufacturers make a tube type in quite the same way, and the
central tendencies of the performance parameters will differ slightly with each maker.
This sonic variability may at first seem a liability, but further thought will reveal that it is an
advantage. The owner of a tube amplifier can select those tubes which sound like the real
thing in his/her specific system. VAC can recommend the best tubes for your amplifier.
Normally vacuum tubes should last for 4,000 to 12,000 hours of use, or two to ten years for
most users. There are always occasional exceptions, long or short. If you have to replace a
tube before, say, 3,000 hours, just replace the single tube. If you have to replace a tube at
8,000 hours, replace them all and keep those still functioning well as spares
VAC will be happy to test tubes for concerned customers.
WARRANTY
Your equipment is warranted for a period of thirty (30) days from the date of purchase.
In addition, if the registration form is received by VAC along with a copy of your sales
receipt from an authorized VAC dealer within this thirty days, a service contract will be
extended to cover your equipment for three (3) years (tubes excepted). It is the responsibility
of the purchaser to determine suitability of this unit for any given application.
This warranty applies only to units sold in the United States of America through authorized
VAC dealers. It covers factory service and standard return shipping. For warranty
information outside of the U.S. contact the importer of VAC equipment for your country.
Units sold outside of the U.S. should still be registered with VAC.
Your questions and comments are always welcome. Contact:
Valve Amplification Company, Inc.
1731 Northgate Boulevard
Sarasota, FL 34234 USA
Telephone
941 359 2066
Facsimile
941 359-2057