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PRECISION 8i
OPERATION MANUAL
11
MIC 1
MIC 2
MIC 3
MIC 4
MIC 5
MIC 6
MIC 7
MIC 8
Direct In
1
Direct In
2
MS
PIN 2 +
PIN 3 -
5
6
Microphone Connection: Microphone connection is made to standard XLR receptacles
on the rear panel. The wiring configuration used for the microphone connectors on the
PRECISION 8i is:
Pin 2 is positive (+)
Pin 3 is negative (-)
Pin 1 is shield
Do not attempt to connect unbalanced microphones (with single-pin connectors) to the
PRECISION 8i. It is not intended to operate with this type of microphone.
CAUTION: We recommend that you avoid “hot-patching” microphone inputs
when using a patch bay at the microphone inputs of the PRECISION 8i.
Please TURN OFF phantom power and turn down the gain prior to
connecting or re-patching microphone inputs routed through a patch bay. Failure to do
so may result in transients that can damage the PRECISION 8i or equipment that is
connected to its outputs-not to mention your ears!
Electric Instrument Connection: Dual-purpose input connectors 5 are available on
channels 7 and 8. Insert XLR microphone connector for normal MIC 7 and MIC 8
operation. Insert 1/4" phone plug for use as Direct Input for instruments DI-1 and DI-2.
DI-1 and DI-2 are controlled by Gain and (phase) controls for channels 7 and 8,
respectively. The gain range for the direct inputs is from -4 dB to +44 dB.
NOTE: DO NOT use TRS plugs for these inputs as the DI will not function correctly.
M-S (mid-side) Microphone Connection: You may note the M-S (mid-side) connection
symbol below the MIC 1 and MIC 2 connectors 6 . This is simply a visual reminder,
when using an M-S mic setup, to connect the MID mic to channel 1 and the SIDE mic to
channel 2. See the section “More About M-S Decoding” for more information.
A Word About Cables.....
Most users of the PRECISION 8i have invested much time and money in their
selection of microphones and preamplifiers. We recommend that you give some
consideration to the microphone, instrument and output cables you select, as well.