TRUE Systems P2 ANALOG - Manual (Page 9)

P2 analog
OPERATION MANUAL
9
Do not attempt to connect unbalanced microphones (with single-pin connectors) to the
P2
analog
. It is not intended to operate with this type of microphone.
You may note the M-S (mid-side) connection symbol 5 below the MIC 1 and MIC 2
connectors. 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.
CAUTION: We recommend that you avoid “hot-patching” microphone inputs
when using a patch bay at the microphone inputs of the
P2 analog
. 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
P2 analog
or equipment that is connected
to its outputs-not to mention your ears!
Output Cable Connection: For ease of connection, two styles of balanced output
connector (XLR and TRS) are provided 6 . Both connector types are electrically
equivalent and may be used simultaneously to connect to Line Inputs on mixing
consoles, recorders, etc. If both pairs of outputs are used, care should be taken to avoid
system ground loops. See “Troubleshooting” section for tips on avoiding hum caused
by grounding problems.
The TRS and XLR output connectors are not electronically isolated. Therefore, if you
chose to connect either one of the output connectors to an unbalanced input, the other
connector will automatically be unbalanced. When connecting an output of the
P2
analog
to an unbalanced input, you must connect the negative signal pin (pin 3 of
the XLR or “ring” of the TRS) to the shield. Failure to do this will result in audible
distortion. The wiring configuration used for the output connectors on the
P2 analog
is:
For XLR:
 Pin 2 is positive (+)
 Pin 3 is negative (-)
 Pin 1 is shield
For TRS:
 Tip is positive (+)
 Ring is negative (-)
 Sleeve is shield
A Word About Cables.....
Most users of the
P2 analog
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.
 Use high-quality, low capacitance cable. Braided shielding and “star quad” type mic
cables will perform better in electrically noisy environments. Manufacturers such as
Canare
, Mogami (and others) make high performance cable of this type.
 Some “house brand” cables are made by quality manufacturers, but others can be
inferior. Be careful. Use cables with high-quality connectors (Neutrik
, Switchcraft,
etc.).