Crown Audio PCC-160W, PCC-160 User Manual

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POLAR PATTERN

PCC®-160 PCC-160W

he Crown® PCC®-160 (Phase Coherent Cardioid®) is a surface-mounted half-

supercardioid microphone intended for professional applications on stage ﬂ oors, 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 subminiature 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 reﬂ ected sounds arrive at the diaphragm in-phase. This coherent addition of direct and reﬂ ected 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 volts. 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 proﬁ le and black ﬁ nish, 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 PCC-160W is ﬁ nished in off-white to blend with church altars and other surroundings where lighter color is appropriate.

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 troublefree use from this reliable microphone.

Capable of withstanding up to 120 dB SPL without 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.

PHASE COHERENT CARDIOID MICROPHONE

Features

Industry-standard stage ﬂ oor microphone Phase Coherent Cardioid design prevents color-

ation from surface sound reﬂ ections High output overrides mixer input noise

Speciﬁ cations

Type: Phase Coherent Cardioid. Element: Electret condenser. Frequency response (typical): 50 Hz to 18,000 Hz at

30 degrees incidence to surface. See Fig. 1.

Polar pattern: Half-supercardioid (supercardioid in the

hemisphere above the primary boundary). See Fig. 2 and Fig. 3.

Impedance: 150 ohms nominal (85 ohms actual),

balanced. (Recommended load impedance 1000 ohms or greater.)

Open-circuit sensitivity: 22mV/Pa* (–33 dB re 1

V/Pa*).

Power sensitivity: –31 dB re 1 milliwatt/Pa*/–123

dBm EIA.

Equivalent noise level (self noise): 22 dB typicaL (0

dB = .0002 dyne/cm

S/N ratio: 72 dB at 94 dB SPL. Maximum SPL for 3% THD: 120 dB SPL. Polarity: Positive pressure on the diaphragm pro-

duces positive voltage on pin 2 with respect to pin 3 of output connector.

Cable: 15-foot, black, two-conductor shielded cable

with Switchcraft TA3F connector and A3M connector.

Operating voltage: Standard phantom power: 12 to

48 volts DC positive on pins 2 and 3 with respect to pin 1.

Safe Operating Temperature: –10° to +50° C or

+14° to +122° F.

Current drain: 4 mA nominal. Materials: All steel body construction. Finish: PCC-160: black. PCC-160W: off-white. Net weight: 11.5 oz. (326 g). Dimensions: See Fig. 5. Optional accessories: Crown PH-1A phantom

power supply (one channel, battery or AC-adapter powered).

*1 pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL.

), A-weighted.

Half-supercardioid polar pattern rejects the pit orchestra and offers high gain-beforefeedback

Very rugged

Low proﬁ le

Fig. 1 Frequency Response

Frequency in Hz

Fig. 2 Vertical Plane Polar Response

Fig. 3 Horizontal Plane Polar Response

1 kHz 200 Hz 4 kHz

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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 isolation 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. To screw the PCC to a surface, refer to Fig. 4 and Fig. 5.

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 microphone is a bass-tilt switch which allows the user to tailor the low-end response for particular applica-

tions. 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’ Speciﬁ cations

The microphone shall be the Crown Model PCC-160 (black) or PCC-160W (off-white). 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 smalldiameter element very near a boundary, thus eliminating comb ﬁ ltering 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 speciﬁ ed.

PCC-160 PCC-160W

Warranty

Crown professional microphone products are guaranteed against malfunction for a period of three years from date of original purchase. Please refer to the enclosed full warranty statement for more detail.

Service

If the microphone does not function properly, check to verify that it is aimed correctly and is connected as described in the Operating Instructions. If there is hum or no signal, repair or replace the cable.

If you determine the microphone product(s)is defective, return the complete product in its original packaging to: Crown Factory Service,

1718 West Mishawaka Road, Elkhart, IN 46517-

9439. A Service Return Authorization (SRA) is required for product being sent to the factory for service. An SRA can be completed on line at www.crownaudio.com/support/factserv.htm. For further assistance or technical support call 800342-6939.

Fig. 5 Dimensions

Fig. 4 Removing the Cover

Crown International, Inc. 1718 W. Mishawaka Rd. Elkhart, IN 46517-9439 TEL: 574-294-8000 FAX: 574-294-8FAX www.crownaudio.com

2008 Crown Audio®, Inc. Speciﬁ cations subject to change without prior notice. Latest information available at www.crownaudio.com. PCC, Phase Coherent Cardioid, PZM, Pressure Zone Microphone, Crown and Crown Audio are registered trademarks of Crown International.

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