Crown Audio PCC-170SW User Manual

POLAR
PATTERN

PCC®-170SW

PHASE COHERENT
CARDIOID® MICROPHONE

he Crown® PCC®-170SW is a surface­ mounted supercardioid microphone of
professional quality. This handsomely

T

styled unit is appropriate for use on the most
elegant boardroom table or lectern. Other ap­plications include churches, courtrooms and
council chambers.

The PCC-170SW has a silent-operating mem­brane switch which is normally off. The switch
can be confi gured for touch on/off, momentary
on or momentary off operation. This confi gura­tion is set by a bottom-mounted DIP switch. A
high-intensity LED lights when the unit is on.
The PCC-170SW is intended for multiple­microphone use on a conference table where
each person wants control of his or her micro­phone.

The microphone attenuates 70 dB when the
switch is in the off position. Since the micro­phone capsule is placed on a boundary or
surface, direct and refl ected sounds arrive at
the diaphragm in-phase, 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. Powered by 12-48V phantom
power, the PCC-170SW has a low-impedance
balanced output which permits long cable runs
without hum pickup or high-frequency loss.
Although the standard connector option is a
Switchcraft TB3M, the microphone can be spe­cial-ordered with a ¼-inch (6.35-mm) stereo
phone plug on the bottom of the base plate as
the PCC-170SWSPP.

RFI suppression is included. Self-noise is low
and sensitivity is very high. A bass-tilt switch
allows the user to tailor the low-end response
for particular applications.

Membrane Switch

The PCC-170SW membrane switch can be con­fi gured to work three ways:

1. Touch on/off. Touch the switch to turn on
the mic; touch it again to turn off the mic.

2. Momentary on. Touch and hold the switch to
turn on the mic momentarily. Release the switch
to turn the mic back off.

3. Momentary off. Touch and hold the switch
to turn off the mic momentarily. Release the
switch to turn the mic back on. This option can
serve as a cough or privacy button.

After choosing the option you prefer, set the DIP
switches according to the label on the bottom of
the microphone (see Fig. 5). The LED in the mi­crophone housing will light when the mic is on.

Features

Perfect for multimiking applications in telecon­ferencing, distance learning, and boardrooms

®

Phase Coherent Cardioid

design prevents

coloration from surface sound refl ections

Specifi cations

Type: Phase Coherent Cardioid®.
Element: Electret condenser.
Frequency response (typical): 50 Hz to 20,000 Hz at

30 degrees incidence to surface (see Fig. 1).

Polar pattern: Half-supercardioid (supercardioid in

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

Impedance: 150 ohms, balanced (recommended load

impedance 1000 ohms or greater).

Open circuit sensitivity (typical): 22 mV/Pa* (–33 dB

re 1 volt/Pa).

Power sensitivity: –30.5 dB re 1 mW/Pa*. EIA rating

–125 dBm.

Equivalent noise level (self-noise): 22 dB SPL typi-

cal (0 dB = 0.0002 dyne/cm

S/N ratio: 72 dB at 94 dB SPL.
Maximum SPL: 120 dB SPL produces 3% THD.
Off Attenuation: 70 dB at 1 kHz.
Turn-on time: 250 msec.
Turn-off time: 125 msec.
Polarity: Positive pressure on the diaphragm

produces positive voltage on pin 2 with respect to
pin 3.

Operating voltage: Phantom power, 12 to 48 volts DC

on pins 2 and 3 with respect to pin 1.

Current drain: 6 mA nominal.
Connector: Switchcraft TB3M in model PCC-170SW.

Bottom-mounted ¼-inch (6.35-mm) stereo phone
plug in model PCC-170SWSPP. See Fig. 7.

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

with Switchcraft TA3F and A3M connectors. No
cable supplied with SPP option.

Materials: High-impact molded plastic and steel

mesh grille.

Finish: Black.
Net weight: 6 oz. (170 g).
Dimensions: See Figs. 4 and 7.
Optional accessories: Crown PH-1A phantom

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

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

2

), A-weighted.

Half-supercardioid polar pattern reduces
ambient noise and room reverberation

Programmable on/off membrane switch

Balanced XLR output

Fig. 1

Frequency Response

Frequency in Hz

Fig. 2

Horizontal-Plane Polar Response

Fig. 3

Vertical-Plane Polar Response

Fig. 4

TOUCH

Fig. 6

Fig. 7

Jack contacts should be close to these dimensions.

Operation

The microphone is factory-set for fl at response
at high frequencies. You can raise or lower the
high-frequency response by adjusting “HF ADJ”
on the bottom of the unit.

Typical placement for each microphone is at
arm’s length from the user. Place one micro­phone facing each person or one between every
two people. The front of the microphone is
indicated by an arrow on the bottom of the base
plate.

Press near the center of the switch. The micro­phone will switch on or off according to how
you set the DIP switches. When the mic is on,
the LED in the housing is lit.

The PCC-170SW includes two keyhole slots in
its base to accept mounting screws.

1. Punch out the keyholes marked on the label
underneath the base plate (use a razor blade,
small screwdriver, etc.).

2. Using the template (Fig. 6), mark the loca­tion of two holes in the table where you want
to mount the mic. These holes are 1.6-inches
(4.064-cm) apart, center-to-center. They are

2.2-inches (5.588-cm) from the rear of the mic.
See Fig. 5.

Fig. 5

Dimensions are to outside of plastic housing.

If your model is the SPP type, install standard
¼-inch (6.35-mm) phone jacks in your table.
Fig. 7 shows the optimum jack wiper locations.

Architects’ and Engineers’ Specifi cations

The microphone shall be the Crown Model
PCC-170SW or equivalent. The microphone
shall be a half-supercardioid electret condenser
type.

The microphone shall employ the principle
of phase coherency achieved by mounting a
small-diameter element very near a boundary,
thus eliminating comb fi ltering in the audible
spectrum. The microphone will exhibit excellent
off-axis response and gain-before-feedback.

A 15-foot (4.6-m), two-conductor shielded
cable with TA3F and A3M connectors shall be
supplied with the microphone. As an option,
the microphone may be obtained with a bot­tom-mounted stereo phone plug (model PCC­170SWSPP, no cable provided).

Nominal sensitivity shall be 22 mV/Pa. Maxi­mum SPL shall be 120 dB SPL for 3% THD.
Equivalent noise shall be 22 dBA nominal. Fre­quency response shall be 50 Hz to 20,000 Hz
with a uniform off-axis response, over 20 dB
down at the rear nulls.

The PCC-170SW shall have a silent operating
membrane switch which can be confi gured for
push on/off, momentary on or momentary off
operation. The Crown Model PCC-170SW is
specifi ed.

PCC-170SW

Warranty

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

Service

If the microphone does not function properly,
check that it is aimed correctly, that phantom
power is being supplied to the mic, and is
confi gured and connected as described in this
data sheet. If there is hum or no signal, fi rst
repair or replace the cable. If the microphone
capsule is defective, order a replacement
PCC-170SW mic capsule from Crown (part
no. M43197-9) or return the microphone in its
original packaging to: Crown Factory Service,

1718 W. 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
800-342-6939.

Crown International
1718 W. Mishawaka Rd.
Elkhart, IN 46517-9439
TEL: [phone]
FAX: [phone]FAX
www.crownaudio.com

©

2006 Crown Audio®, Inc. Specifi cations subject
to change without prior notice. Latest information
available at www.crownaudio.com. Crown, Crown
Audio, PCC and Phase Coherent Cardioid are regis­tered trademarks of Crown International.

9/06 126443-7A