Audison Thesis HV venti, Руководство пользователя, Страница: 13 / 25

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OUT MODE
It permits to confi gure the amplifi er in STEREO or MONO.
If you put Out Mode control on STEREO, PRE IN LEFT and RIGHT inputs signals are separately amplifi ed and they
are in SPEAKER LEFT and RIGHT outputs.
If you put Out Mode control on MONO, you shift phase in the Right channel and you can thus bridge the device. This
shifting is necessary since HV venti channels are in phase because of their perfect symmetry, differently from most
amplifi ers, one channel of which is always out of phase.
Input signal must be applied to PRE IN RIGHT.
If installed, the crossover works as 24dB Lo Pass in MONO confi guration.
Speakers cables for bridged connection (MONO) must be connected to the positive terminals of SPEAKER terminal
blocks of every channel.
Left and Right channels in STEREO and always one in phase with the other insure excellent, high end performances
but don’t allow the amplifi er Tri Mode confi guration. This might occur only when using inputs in balanced confi guration
and when shifting the positive hot pole with the negative pole of one input. In this case, the speaker positive pole must
be connected to the positive output of the channel which is not out of phase.
IN MODE
It selects inputs balanced or unbalanced confi guration.
If IN MODE control is on UNBAL, PRE IN LEFT and RIGHT inputs are compatible with standard RCA unbalanced
preamplifi ed outputs, which various signal sources like CD players, signal processors, etc., are provided with.
If IN MODE control is on BAL, PRE IN LEFT and RIGHT inputs are balanced. Inputs must be connected to a proper
balanced signal source in this confi guration.
L/R ALIGNMENT
This control increases L or R channels level up to +3dB. It is useful to acoustically align the two channels.
SENSITIVITY
Amplifi er input sensitivity controls.
The HIGH/LOW control permits to choose the two ranges to calibrate through MAX/MIN switch:
If it is set on HIGH – input sensitivity can be adjusted between 0.25 and 1.5 VRMS (MAX/MIN);
If it is set on LOW – input sensitivity can be adjusted between 1.0 and 6.0 VRMS (MAX/MIN).
Use HIGH range only if you don’t have a suitable acoustic signal source to take the amplifi er to its max. power.
PRE ON - PRE OFF
It enables (ON) or disables (OFF) the internal pre-amplifi er, so that you can drive the amplifi er with an external
pre-amplifi er. Controls are bypassed, except for IN MODE and OUT MODE. The white leds will light only the knobs
of these two controls.
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CONTROLS PANEL OWNER’S MANUAL
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