Behringer EURODESK SX4882 User Manual page 13

Fig. 7.8: A and B-channel input section
A-channel line inputs
The A-channel line inputs accept balanced or unbalanced 1/4"
jacks, tip = hot, ring = cold and sleeve = ground/screen.
Mic inputs
These are via XLR-type connectors, wired pin 1 = ground, pin 2 =
hot and pin 3 = cold, for balanced low-level operation. Since most
quality capacitor microphones require a 48 V DC offset to charge
the plates, phantom power is provided and can be switched on
or off in three blocks of eight via a switch situated below channels
8, 16 and 24.
Care should be taken not to plug microphones into
+
the console (or stagebox / wallbox) while the phantom
power is on. Also, mute the monitor / PA speaker when
turning phantom power on or off. Allow one minute
after powering up for the system to equilibrate before
setting input gains.
Channel inserts
These provide for unbalanced send and return from a single
stereo jack socket. Wiring is: tip = out, ring = in and sleeve =
ground/screen.
Direct outputs
This tap comes from just after the channel fader. Unbalanced
1/4" jacks.
B-channel inputs/tape returns
They also accept balanced or unbalanced 1/4" jacks and are swit-
chable, in groups of eight, between -10 dBV (unbalanced) and +4
dBu (balanced), corresponding to the standard semi-professional
and professional operating levels and configurations respectively.
Consult your multitrack manual to find out which one applies.
Fig. 7.9:
Subgroup outputs/tape sends
The eight subgroups are each connected to two stereo jack sock-
ets, for easy patching into 16 track recording systems (or 24 track, if
you use Y-adaptors). Once again, the operating level is switchable
between +4 dBu and -10 dBV in two banks of (2x) 4.
Fig. 7.10:
Connections
EURODESK SX4882
MIX-B operating level switch
and phantom power switch
Subgroup outputs/tape sends
and operating level switch
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