Audio-Technica 25ax User Manual

SCALE IS 5 DECIBELS PER DIVISION

Polar Pattern

200 Hz

LEGEND

5 kHz

1 kHz

8 kHz

240

180

210

270

300

330

150

120

12" or more on axis

10050200

LEGEND

10k

500

20k

Frequency in Hertz

Frequency Response

Response in dB

10 dB

PRO 25ax

HYPERCARDIOID DYNAMIC INSTRUMENT MICROPHONE

• Ideal for kick drum, percussion, brass, and other highly dynamic instruments

• Excels in high-SPL applications

• Warm low-frequency response with excellent presence

• Superior off-axis rejection for maximum gain before feedback

• Versatile mounting options and effective dampening of mechanical noise thanks to included AT8471 isolation clamp

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

• Rugged design and construction for reliable performance

PRO 25ax SPECIFICATIONS

†

ELEMENT Dynamic

POLAR PATTERN Hypercardioid

FREQUENCY RESPONSE 30-12,000 Hz

OPEN CIRCUIT SENSITIVITY –54 dB (1.9 mV) re 1V at 1 Pa*

IMPEDANCE 600 ohms

WEIGHT (less accessories) 8.1 oz (230 g)

DIMENSIONS 4.45" (113.0 mm) long,

1.97" (50.0 mm) maximum diameter

OUTPUT CONNECTOR Integral 3-pin XLRM-type

ACCESSORIES FURNISHED AT8471 isolation clamp for 5/8"-27

threaded stands;

†

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 Specifications are subject to change without notice.

= 10 microbars = 94 dB SPL

threaded adapter; soft protective pouch

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

• Hypercardioid polar pattern improves isolation of desired sound source

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.

The PRO 25ax includes an AT8471 isolation clamp to provide secure mounting, versatile positioning, and effective dampening of unwanted mechanical noise.

Take care to keep foreign particles from entering the windscreen. An accumulation of iron or steel filings on the diaphragm, and/or foreign material in the windscreen’s mesh surface, can degrade performance.

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

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

www.audio-technica.com