VTL IT-85, Руководство пользователя

Страница: 24 / 38

IT-85 Integrated amplifier
Owner’s Manual
VTL 19
Caution: Before switching the Processor switch to either
position ensure that there are no high signals present, as
switching to either of these positions can result in extremely
high signals from the IT-85, which can give you an unpleasant
surprise and/or damage your hearing.
Using the Tape out
To take advantage of the fixed out put record out feature of the IT-85, connect the
tape deck’s input and output cables to the
Tape Out and In connectors of the IT-85, as
per the instructions in the Getting Started section of this manual.
Connecting a second amplifier to your IT-85
Your VTL IT-85 integrated amplifier is designed to offer maximum flexibility and
re-use in a later system upgrade path, should you desire it. The buffered preamp
out is for use with either a subwoofer, or with another amplifier for driving some
of the loudspeaker load (on speakers that offer the ability to connect separate
amplifiers to the upper and lower frequency sections.)
To properly bi-amplify without using an external crossover, special consideration
must be given to matching the gains and input impedances of both power
amplifiers, so as not to over-accentuate one part of the frequency spectrum and
cause an imbalance in the sound character of the speaker.
The best example of this type of bi-amped system would be the use of the VTL
ST-85 stereo power amplifier, which has been precisely gain-matched to the signal
that will be output from the preamp outs of the VTL IT-85. It is recommended
that for this type of system the amplifiers get connected to the loudspeakers in a
horizontal (rather than vertical) bi-amp mode (i.e. with one stereo amplifier on the
bass of both channels and with the other stereo amplifier on the top of both
channels). In this fashion the IT-85 becomes the central source director and
volume control for the whole system.
In this mode it is important to ensure that the home theater processor mode is not
needed, as this function mutes the pre out.
Consult your speaker and amplifier manuals and your dealer for additional installation
instructions on this mode of usage.