AKG PCC-160 User manual

Theater on stage miking
Houses of worship
Conference and lectern
Boundary Layer Microphones
•Supercardioid polar pattern rejects the pit orchestra and offers an impressive
gain before feedback
•Phase coherent cardioid® design prevents coloration from surface sound
reflections
•Finely crafted, rugged housing withstand the rigors of the stage
•Low profile to be inconspicuously placed on the stage-floor
•Industry standard stage-floor microphone
PCC-160
The Crown PCC
®
-160 (Phase Coherent Cardioid®) is a surface-mounted supercardioid microphone intended for professional applications on stage
floors, lecterns, conference tables, and news desks—wherever improved gain-before-feedback and articulation are important.
Similar to the Pressure Zone Microphone® (PZM®), the PCC® is designed to be used on a relatively large boundary surface. Unlike the PZM®, the
Phase Coherent Cardioid® uses a sub miniature supercardioid mic capsule. Its directional polar pattern improves gain-before-feedback, reduces
unwanted room noise and rejects sounds from the rear. Surface-mounting creates a “half-supercardioid” polar pattern and increases directivity 3 dB.
Since the microphone capsule is placed on a boundary, direct and reflected sounds arrive at the diaphragm in-phase. This coherent addition of direct
and reflected waves increases sensitivity 6 dB and prevents phase cancellations. The mic capsule is small enough to ensure phase coherency up to
the highest frequencies in the audible spectrum, resulting in a wide, smooth frequency response free of phase interference. Clarity and reach are also
enhanced.
Self-contained electronics eliminate the need for an in-line preamp box. The PCC® -160 can be phantom powered directly from the console or other
remote power source providing 12 to 48 V. If battery power is required, a battery supply unit can be inserted anywhere in the mic line right up to the
console or mixer. A “bass tilt” switch allows the user to tailor the low-end response for particular applications. Thanks to its low profile and black finish,
the microphone becomes almost invisible in use. A side-mounted connector complements the form factor of the PCC® -160, allowing the unit to be
placed effectively at the stage edge, at the top of a lectern or in other tight spots. If desired, the cable can be hard-wired for bottom entry.
The heavy-gauge, all steel body protects the unit from accidental abuse. Permanent mounting is enabled by screw holes in the base. Engineering
attention-to-detail has assured years of trouble-free use from this reliable microphone.
Capable of withstanding up to 120 dB SPL with-out distorting, the PCC® -160 will never overload in practical use. Its electret condenser capsule
provides a wide, smooth frequency response from 50 Hz to 18 kHz. RFI suppression is included. Self-noise is low, and sensitivity is very high to
override mixer noise in distant-miking applications. Output impedance is 150 ohms, balanced.
Boundary Layer Microphones

Specifications:
Polar pattern: supercardioid
Frequency range: 50 to 18,000 Hz
Impedance: 150 ohms
Sensitivity: 22mV/Pa (-30dBV)
Equivalent noise level: 22 dB-A
Maximum SPL: 120 dB
Cable: 4,6 m (15ft.)
Finish: black
Net weight: 170 g (6 oz.)
Item number: PCC-170 6000H50110
Boundary Layer Microphones
Operating Instructions
Unbalanced operation: If you are using a phantom power supply that does NOT include an
isolation transformer, and you desire an unbalanced output, use pin 2 as hot and pin 1 as
ground. This procedure prevents distortion in the PCC® circuit. Do not unbalance the output
of the supply by connecting pin 3 to pin 1. If you are using a phantom supply containing an
iso-lation transformer (such as the Crown PH-1A AC/Battery Supply), then you can unbalance
the output by connecting pin 3 to pin 1 in the cable feeding the mixer. This results in 6 dB
more sensitivity. The PCC® includes two keyhole slots in its base to accept mounting screws.
Note: The porous foam liner in the housing must go toward the front of the microphone; the
dense foam liner goes toward the rear. Otherwise the frequency response and polar pattern
will be degraded.
Placement suggestions for the PCC® -160 are in the Crown® Boundary Microphone
Applications Guide and Speech Sound Reinforcement Application Guide, available online at
http://www.crownaudio. com/mic_web/mic-library.htm.
BASS TILT SWITCH: On the bottom of the micro-phone is a bass-tilt switch which allows the
user to tailor the low-end response for particular applications. In general, use the FLAT
position. Use the CUT position to reduce room rumble and air-handler noise. Use the BOOST
position to compensate for low-frequency losses when the PCC® is placed on small
boundaries such as lectern shelf-tops.
Architects’ & Engineers’ Specifications
The microphone shall be the PCC® -160 or equivalent.
The microphone shall be a half-supercardioid electret condenser type, utilizing a subminiature
transducer of rugged construction. A smooth frequency response from 50 Hz to 18,000 Hz shall
be obtained, with a uniform off-axis response, over 20 dB down at the rear nulls. The microphone
will exhibit excellent off-axis response and gain-before-feedback.
The microphone shall employ the principle of phase coherency achieved by mounting a small-
diameter element very near a boundary, thus eliminating comb filtering in the audible spectrum. A
15-foot (4.6-m), two-conductor shielded cable with TA3F and A3M connectors shall be supplied
with the microphone. The microphone shall have a sensitivity of 22 mV/Pa. The microphone shall
accept a 120 dB SPL input while providing no greater than 3 percent THD (open-circuit
termination). Equivalent noise shall be 22 dBA typical.
The Crown Model PCC® -160 is specified.