You can operate the various controls and switches from the front panel to access the
full functionality of the unit. The Status indication LED shows the various operating
modes of the unit.
The Status LED indicates the power on status of the preamplifier. When the unit
is powered on, the LED light will first blink to indicate the preamplifier is in mute,
and then after 30 seconds, the blinking will go away. The Status light continues to
stay on to indicate that the system is in the “ready” state.
The Input Selector can be used to select the source component for the preamplifier.
You can choose any one of the six inputs by turning the selector knob to the
location as marked above the knob.
The Tape Monitor can be used to select whether the input source is coming from
tape monitor or not. If you wish to use the preamplifier to monitor an ongoing
recording session from the tape deck, you can select this switch to Tape Monitor
mode. In this state the playback from the preamplifier will come directly from the
tape deck. In the default operating mode of the preamp, this switch stays n the
down position. This means that the input source will not come from the tape deck,
but will be dependent on the input selection made on the preamplifier.
The Surround Processor:This switch can be used to change the control of your
audio/video system to the surround processor when the switch is turned to the
Processor In position. In this mode, the surround system will only control all of the
channels of your system, and the preamplifier is in the unity gain mode. In this
mode the volume control and the amplification stages of the TL2.5 are bypassed
completely, and the signal is passed to the front left and right amplifiers at precisely
the same volume as the surround processor is putting out. In the default operating
mode of the preamp, the Processor switch stays in the down position. This means
that the preamplifier will not be receiving the signal from the surround processor.
The Balance Control knob can be used to set the left and right channel level. When
the line on the knob is in the 12 o’clock position this indicates that the left and
right channels are equally balanced - you will feel a center detent in the control to
indicate this exact position.
The Volume Control knob changes the loudness level of the output from your
speaker system. Turning the knob clockwise will increase the volume level.
Alternatively, turning the knob counter-clockwise will decrease the volume level.
The Mute switch is a momentary toggle switch to allow you to switch the system
into the mute state if the preamplifier is currently in the operating state - press the
switch down. If the preamplifier is currently in mute state, clicking this switch
down again will change the system back into the operating state.
TL2.5 Preamplifier Owner’s Manual
VTL 4
