Advertisement
PHASING
To test two microphones and/or their cables for proper
phasing, connect them to an amplifier and talk or sing into
them while holding them three or four inches apart. The
sound from the speakers should be the same when talking
into either microphone or directly between them if they
are in phase with each other. If the sound drops drastically,
or if a dead spot is found when talking between the two
microphones, one of them or its cable (low impedance
only) is out of phase. All cables and microphones should
be tested in this manner to insure that they are in phase
with each other.
To change the phase of a low-impedance microphone
cable, either use a Shure AlSPR Phase Reverser or inter-
change the wires connected to pins 2 and 3 of the connec-
tor. To change the phase of
a
microphone, the microphone
cartridge leads must be interchanged (see Figure 2). This
should be performed by your dealer, the Shure Factory
Service Department, or other qualified service personnel.
IMPEDANCE
Your microphone is supplied wired for low impedance for
connection to low-impedance microphone inputs (rated at
19 to 300 ohms). For instant change for connection to
high-impedance
(?4
in. phone jack) microphone inputs,
connect the supplied cable (or any number of additional
CS 1 CNs) to the low-impedance side of the furnished
A95FP Line Matching Transformer and plug the high-
impedance side
( %
in. phone plug) into the input.
For internal impedance change, remove male plug insert
by turning slotted setscrew inward (counterclockwise).
Disconnect two-terminal impedance selection socket from
rear of male insert, and reconnect socket in reverse posi-
tion so that pin 3 of male insert is inserted in socket
terminal "H". NOTE: After following the above direc-
tions, the PESOSP with the supplied two-conductor CSlCN
cable will be suitable for connection to high-impedance
inputs using three-pin professional audio connectors. For
direct connection to
1/4
in. phone jack inputs, replace the
CSICN cable with the CS-X: 6.lm (20 ft) single-con-
ductor shielded with three-pin professional audio connector
(female) on microphone end and
'/4
in. phone plug on
equipment end.
Advertisement
