T+A Elektroakustik P 10 - Handbuch (Seite 39)

TASI (  Surround Interface)
This interface, normalised by , enables you to loop a
 surround decoder between the source select switch
and the amplifier’s volume control.
If a decoder is connected in this way, the interface
automatically detects it and switches to surround mode.
In surround mode the amplifier’s volume and tone
controls are disabled, as these functions are assumed by
the decoder.
Update / Upgrade
This  unit can be kept up to date with the current
state of development by fitting an update or upgrade.
• An Update expands the unit’s operating facilities by the
installation of a new program memory.
• An Upgrade involves the installation of replacement
sub-assemblies or auxiliary modules. The installation or
conversion work is carried out by your specialist

dealer.
Volume control
The amplifier features a two-stage volume control which
enables the unit to work at a high level of amplification in
the input stage of the pre-amplifier, without risking over-
loading the pre-amplifier.
This is the responsibility of the first volume control. In the
subsequent stages of signal processing the amplifier has
a higher-level signal to handle, and this in turn signifi-
cantly reduces hiss and crossover distortion where the
signal passes through zero.
The second volume control reduces any hiss generated
in the pre-amplifier at low levels directly before the output
stage.
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