Butler TUBE DRIVER BLUE, Информация владельца

Страница: 11 / 17

9
Input Gain Control
The Input Gain Controls are located on the top panel. These are
NOT volume controls! They are designed to match the output
signals of the source unit to the amplifier inputs.
By turning the controls clockwise (to the right), the associated 5
RCA inputs located on the end panel of the amplifier become
more sensitive and will allow a weak signal as low as 450 mV to
drive the amplifier to full power. It is advisable, however to use
the LOWEST possible setting of the input gain controls and
driving the amplifier with the HIGHEST level from the source unit.
This will reduce the potential for the amplifier to reproduce
pops
from brake light and accessory switches and alternator whine or
ignition tick .
In order to achieve the best Signal to Noise ratio possible, you
must carefully experiment by making a few practical listening tests
to adjust the 'headroom' of your system correctly. The basic rule
to remember is that best S/N ratio is achieved by using the
highest undistorted level from the source unit and the lowest
undistorted input level setting on the amplifier.
Summary
1. Start by setting the Input Gain Controls to just above
minimum.
2. Turn the master volume or output volume of the source unit to
almost full-undistorted volume.
3. With music playing, slowly increase the input Gain Controls
until you hear distortion. Turn down the Gain Controls until
the distortion stops.
This will set the approximate proper 'headroom' level to operate
the source unit/crossover/preamp with your Tube Driver BLUE.
Further minor adjustments may be made at any time if desired.