Audio-Technica PRO 37 Datasheet

SCALE IS 5 DECIBELS PER DIVISION

Polar Pattern

200 Hz

LEGEND

5 kHz

1 kHz

8 kHz

240

180

210

270

300

330

0

150

120

90

30

60

12" or more on axis

10050200

LEGEND

10k

5k

1k

500

2k

20k

Frequency in Hertz

Frequency Response

Response in dB

10 dB

PRO 37

SMALL-DIAPHRAGM CARDIOID
CONDENSER MICROPHONE

• Ideal for acoustic guitar, overheads, piano and group vocals

• Professional performance for studio recording and live sound
reinforcement

• Excels in high-SPL applications

• Low-mass element for superb transient response

• Corrosion-resistant contacts from gold-plated XLRM-type
connector

• Rugged design and construction for reliable performance

• Cardioid polar pattern reduces pickup of sounds from the sides
and rear, improving isolation of desired sound source

PRO 37 SPECIFICATIONS

†

ELEMENT Fixed-charge back plate

permanently polarized condenser

POLAR PATTERN Cardioid

FREQUENCY RESPONSE 30-15,000 Hz

OPEN CIRCUIT SENSITIVITY –42 dB (7.9 mV) re 1V at 1 Pa*

IMPEDANCE 200 ohms

MAXIMUM INPUT SOUND LEVEL 141 dB SPL, 1 kHz at 1% T.H.D.

DYNAMIC RANGE (typical) 112 dB, 1 kHz at Max SPL

SIGNAL-TO-NOISE RATIO

1

65 dB, 1 kHz at 1 Pa*

PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical

WEIGHT (less accessories) 1.7 oz (49 g)

DIMENSIONS 3.9" (99.0 mm) long, 0.83"

(21.0 mm) maximum body diameter

OUTPUT CONNECTOR Integral 3-pin XLRM-type

ACCESSORIES FURNISHED AT8405a stand clamp for 5/8"-27

threaded stands;
threaded adapter; windscreen;

†

In the interest of standards development, A.T.U.S. offers full details on its test
methods to other industry professionals on request.

*1 Pascal = 10 dynes/cm

1

Typical, A-weighted, using Audio Precision System One.

Specifications are subject to change without notice.

2

= 10 microbars = 94 dB SPL

soft protective pouch

5

/8"-27 to 3/8"-16

The PRO 37 is intended for use in professional applications where
remote power is available. It requires 11V to 52V DC phantom
power, which may be provided by a mixer or console, or by a
separate, in-line source such as the Audio-Technica AT8801
single-channel or CP8506 four-channel phantom power supplies.

Output from the microphone’s XLRM-type connector 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.

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.

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224

Audio-Technica Limited, Old Lane, Leeds LS11 8AG England

www.audio-technica.com

P51680-EN ©2004 Audio-Technica U.S., Inc. Printed in Japan