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Front Panel Controls
The Tosca provides input switching for five (5)
signal sources. The control layout and logic is
optimized for controlling two balanced and 3
unbalanced inputs. These sources are
switched through two 3-position rotary controls.
• Main Selector
This is the left-most switch and selects either
the Bal 1 (balanced input 1) or the RCA
inputs Turner and Aux. The input selected
by this switch is then routed to the Tape
Output and the second rotary switch which
selects between the Main Selector, the T
ape Monitor input, and the direct Bal 2
(balanced input 2) input.
• Tape Monitor and Bal 2 Selector
This switch selects the between the Main
Selector and the Tape Monitor or the Bal 2
inputs. This second balanced input
bypasses the first switch and provides the
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shortest signal path for your primary music
source. This input can not be routed to the
Tape Out jacks. If you wish to record this
input you will need to connect this source
through the Bal 1 inputs. The center position
of the Tape Monitor switch can serve as a
system mute if no tape source is being
played.
This switching arrangement provides useful
functionality with minimum signal
degradation and cost-effective, true-
balanced switching. The central LED
indicates that power is applied to the
preamplifier. There is no on-off switch since
the preamp is designed to remain on to
insure optimum performance without a
warm-up period.
• Gain Level
The Level control functions as a standard
volume control, adjusting the output level
with logarithmic-law.
Tosca Owner's Manual
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