The stereo input module is very similar to the monaural input module - for
this reason, only the features which differ from the monayral module are
described here.
1. PAN(switch and rotary controls):These
controls are similar to those on the monaural modules, except that the "pan
pot" is, in fact, two concentric panpots. The inner pot moves the position
of the signal applied at the left channel input within the stereo image,
and the outer does the same for the right input signal.
2. GAIN control and L-MONO switch:
The GAIN control on a stereo input module is two pots, cluttered together
so that adjustment can be made easily to both input signals simultaneously
or individually.
The GAIN control provides 40dB of adjustment; from +10dB to -30dB.
Stereo input modules do not include a PAD switch. The position that such
a switch would occupy is used by a L-MONO switch. When engaged, only the
signal at the left channel input is processed by the channel.
3. AUX send controls: These
differ from the monaural channel's AUX send controls in the following way:
controls 5, 6, 7 and 8 cannot be individually switched between pre- and
post-fader operation. Instead, there are two PRE switches: one controlling
5 and 6, and the other controlling 7 and 8.
There are also two ST switches, marked ST, which, when engaged, allow the
routing of the stereo the stereo input signals in a flexible way. These
switches apply to two pairs of AUX busses: 5+6, and 7+8. When engaged, the
left signal of the stereo input channel is routed to the odd-numbered AUX
bus (5 or 7) and the right channel to the even-numbered bus (6 or 8). The
levels are individually controllable with the appropriate controls.
4. PEAK, NOMINAL and SIGNAL indicators: There are two sets of indicators in each module.
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