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PRO 35
Cardioid Condenser Clip-on Instrument Microphones
Features
• Attaches to reeds, brass, upright bass, toms and other percussion
• Excels in high-SPL applications and is ideal for active stage
performances
• Low-prole design for minimum visibility
• Extended frequency response captures subtle nuances of the
performance
• Cardioid polar pattern reduces pickup of sounds from the sides
and rear, improving isolation of desired sound source
• UniMount® clip permits accurate positioning, provides shock
resistance and protects element
• Switchable 80 Hz high-pass lter minimizes pickup of undesired
low-frequency sounds
• Also available in a wireless model, PRO 35cW
PRO 35 Description
The PRO35 is a xed-charge clip-on condenser microphone with a
cardioid polar pattern. It is designed for use in professional live-sound and
studio applications.
When used with the included instrument mount, it provides accurate,
consistent pickup of reeds, brass and percussion.
pro series live sound microphones
PRO 35cW. The PRO 35cW dimensions, polar pattern and included
instrument mount are identical to those of the PRO35.
Operation and Maintenance
The PRO35 requires 11V to 52V phantom power for operation.
Output is low impedance (Lo-Z) balanced. The signal appears across Pins
2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot”— positive
acoustic pressure produces positive voltage at Pin 2.
To avoid phase cancellation and poor sound, all mic cables must be wired
consistently: Pin 1-to-Pin 1, etc.
An integral 80 Hz high-pass lter provides easy switching from a at
frequency response to a low-end roll-off. The roll-off position reduces
the pickup of low-frequency ambient noise (such as trafc, air-handling
systems, etc.), room reverberation and mechanically coupled vibrations.
To engage the high-pass lter, slide the switch toward the “bent” line.
The included UniMount® instrument mount entirely surrounds the
microphone with foam to isolate the microphone from noise transmitted
from the instrument, shield the element against accidental damage,
and provide an efcient wind screen. The exible arm permits aiming
the microphone in any direction, while a cable strain relief reduces
cable-transmitted noise and cable damage. The rubber grip spring clamp
securely holds the microphone to the instrument without marring the
surface.
Avoid leaving the microphone in the open sun or in areas where
temperatures exceed 110° F (43° C) for extended periods. Extremely high
humidity should also be avoided.
Architect’s and Engineer’s Specications
The microphone shall be a xed-charge condenser. It shall have a
cardioid polar pattern with a uniform 120° angle of acceptance and
a frequency response of 50 Hz to 15,000 Hz. The microphone shall
operate from an external 11V to 52V DC phantom power source. It shall
be capable of handling sound input levels up to 145 dB with a dynamic
range of 115 dB. Nominal open-circuit output voltage shall be 5.6 mV at
1 V, 1 Pascal. Output shall be low impedance balanced (250 ohms).
The microphone requires 11V to 52V phantom power for operation.
The cardioid polar pattern of the microphone is more sensitive to sound
originating directly in front of the element, making it useful for controlling
feedback and reducing pickup of unwanted sounds.
The microphone includes a 1.8 m (6') permanently attached miniature
cable. Its free end connects to the provided AT8538 power module via a
TA3F-type connector. The output of the power module is a 3-pin XLRMtype connector.
A switch in the power module permits choice of at response or lowfrequency roll-off (via integral 80 Hz high-pass lter) to help control
undesired ambient noise.
The microphone is enclosed in a rugged housing with a low-reectance
black nish. A power module, an instrument mount and a soft protective
pouch are included.
PRO 35cW Description
The microphone is also available in a wireless model, the PRO35cW.
The PRO35cW features a 1.4 m (55") miniature cable terminated with
a locking 4-pin connector for use with Audio-Technica UniPak® bodypack transmitters. No power module is included (or required) with the
The microphone shall have a 1.8 m (6') permanently attached miniature
cable terminating in a TA3F-type output connector. The output connector
shall connect to a TB3M-type jack on the included power module. The
power module shall contain a switch that permits a choice of at response
or 80 Hz low-frequency roll-off. The output of the power module shall be a
3-pin XLRM-type connector.
The microphone shall be 25.0 mm (0.98") long and have a diameter of
10.2 mm (0.40"). Weight shall be 8 grams (0.3 oz) without cable. The
microphone shall include a power module, an instrument mount and a
soft protective pouch.
The microphone shall also be available in a wireless model with a 1.4 m
(55") miniature cable terminated with a locking 4-pin connector for use
with Audio-Technica UniPak® body-pack transmitters. No power module
shall be required or included with the wireless model. The wireless
model dimensions, polar pattern, and included instrument mount shall be
identical to those of the wired model.
The Audio-Technica PRO35 [PRO35cW-wireless] is specied.
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Specications
Element
Polar pattern
Frequency response
Low frequency roll-off
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Signal-to-noise ratio
Phantom power requirements
Switch
Weight
Dimensions
Output connector
Cable
Audio-Technica case style
Accessories furnished
In the inter est of standards devel opment, A.T.U.S.
offers full details on its test me thods to other industr y
1 Pascal = 1 0 dynes/cm
1
Typical, A-weighted, using Audio Precision System One.
Specication s are subject to chang e without notice.
professional s on request.
2
= 10 microb ars = 94 dB SPL
PRO 35
Fixed-charge back plate, permanently
polarized condenser
Cardioid
50-15,000 Hz
80 Hz, 18 dB/octave
–45 dB (5.6 mV) re 1V at 1 Pa
250 ohms
145 dB SPL, 1 kHz at 1% T.H.D.
115 dB, 1 kHz at Max SPL
1
64 dB, 1 kHz at 1 Pa
11-52V DC, 2 mA typical
Flat, roll-off
Microphone: 8 g (0.3 oz)
Power module: 81 g (2.9 oz)
Microphone: 25.0 mm (0.98") long,
10.2 mm (0.40") diameter
Power module: 92.9 mm (3.66") long,
18.9 mm (0.74") diameter
Integral 3-pin XLRM-type
1.8 m (6.0') long (permanently attached
to microphone), 2.6 mm (0.10") diameter,
2-conductor, shielded cable with TA3Ftype connector
M12
AT8538 power module; AT8418 UniMount®
microphone instrument mount; soft
protective pouch
391
frequency response: 50 –15,000 Hz
10 dB
100
12" or more on axis
Roll-off
330˚
200
Frequency in Hertz
0˚
180˚
500
30˚
150˚
5k
2k
1k
60˚
120˚
10k
90˚
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
50
LEGEND
polar pattern
300˚
270˚
240˚
210˚
SCALE IS 5 DECIBELS PER DIVISION
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
©2010 Audio-Technica U.S., Inc. audio-technica.com 0001-0178-01
Response in dB
20k