VTL TL5.5 Series II Signature, Руководство пользователя

Страница: 46 / 58

C H A P T E R 4
Care and Maintenance of
your VTL preamplifier
Break In Period
Your VTL TL5.5 SERIES II preamplifier is a pure tube product designed to give you the
continued optimum performance over an extremely long time period. Initially the tubes
and circuits will require a burn-in period to reach maximum performance. During the first
100 hours of usage the preamplifier will undergo several improvements in sound. To break
in the TL5.5 SERIES II you can leave it on with a music source connected to it and
playing with the volume control turned to the 45 level. It is not necessary to have the
power amplifier on during this break in period, as the preamplifier will still pass the signal.
Tube Life
Your VTL preamplifier has been designed to ensure long tube life. Tube replacement need
not be considered until after approximately 2000 hours of use (roughly 2 to 3 years
depending on your listening requirements.) As the tubes age beyond their peak
performance there will be a general softening of the sound.
We recommend a complete replacement of the tubes in your preamplifier at that time,
which will restore it to a “like new” sound quality. The tubes used in your TL5.5 Signature
Preamplifier are specially matched and tested for this preamplifier. Please contact your
VTL dealer or VTL factory service department to order the matched tubes for the
preamplifier.
Note: use only tube types and tube brands that are recommended by VTL. VTL
specified replacement tubes are available from your authorized VTL dealer or the VTL
factory service department. Any damage incurred to units which use non-VTL
approved tubes will not be covered under the warranty.
Changing Tubes
Do not attempt to change tubes yourself. Contact your authorized VTL dealer or the VTL
factory service department and have the service performed by a trained technician. You
will need to take the unit and this procedure to your dealer for them to perform this
procedure properly.
Notes to the Service technician:
TL5.5 SERIES II Preamplifier Owner’s Manual
VTL
41