Audio-Technica AT898 User Manual

SCALE IS 5 DECIBELS PER DIVISION

Polar Pattern

200 Hz

LEGEND

3 kHz

1 kHz

8 kHz

240

180

210

270

300

330

150

120

12" or more on axis

10050200

LEGEND

Roll-off

10k

500

20k

Frequency in Hertz

Frequency Response

Response in dB

10 dB

AT898

SUBMINIATURE CARDIOID CONDENSER MICROPHONE

• Maximum intelligibility and clean, accurate reproduction for lecturers, stage and television talent, and worship leaders

• Low-profile design (a mere 5 mm in diameter) is ideal for applications requiring minimum visibility

• Includes an extensive array of accessories

• Switchable low-frequency roll-off reduces sensitivity to popping in close vocal use

• Operates on battery or phantom power

The AT898 is designed to be worn as a lavalier or hidden in loose clothing. For use as a lavalier, attach the microphone about six inches below the chin. Anticipate movements that may cause the microphone to rub against or be covered by clothing, and position the microphone to avoid it.

The included single and double mic holders are interchangeable with all the bases. To change the holders, simply remove original holder and snap in the desired one. When using the AT898 in extremely close situations, slip the included open-pore foam windscreen over the mic to reduce wind noise or “popping.”

CAUTION! To avoid possible injury, use caution when affixing the AT898 viper clip to clothing. The pins are sharp and may puncture skin. For best results, ensure that pin ends rest on outside of clothing.

The AT898 requires 11-52V DC phantom power, or a 1.5V AA battery for operation. A battery need not be in place for phantom power operation.

Battery installation: Unscrew the base of the power supply unit and insert one AA battery into the battery compartment, being certain to observe battery polarity as marked. Then simply screw the base shut. Alkaline batteries are recommended for longest life. Remove the battery during long-term storage.

Output from the power module’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.

The microphone is RoHS compliant–free from all substances specified in the EU directive on hazardous substances.

Avoid leaving the microphone in the open sun or in areas where temperatures exceed 43° C (110° F) for extended periods. Extremely high humidity should also be avoided.

AT898 SPECIFICATIONS

ELEMENT Fixed-charge back plate

†

permanently polarized condenser

POLAR PATTERN Cardioid

FREQUENCY RESPONSE 200-15,000 Hz

LOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octave

OPEN CIRCUIT SENSITIVITY –43 dB (7.0 mV) /

(Phantom / Battery) –46 dB (5.0 mV) re 1V at 1 Pa*

IMPEDANCE (Phantom / Battery) 200 ohms / 250 ohms

MAXIMUM INPUT SOUND LEVEL 131 dB / 115 dB SPL,

(Phantom / Battery) 1 kHz at 1% T.H.D.

DYNAMIC RANGE (typical) 100 dB / 84 dB, (Phantom / Battery) 1 kHz at Max SPL

SIGNAL-TO-NOISE RATIO

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

63 dB, 1 kHz at 1 Pa*

BATTERY TYPE 1.5V AA/UM3

BATTERY CURRENT / LIFE 0.4 mA / 1200 hours typical

(alkaline)

SWITCH Flat, roll-off (recessed)

WEIGHT (less cable and accessories)

MICROPHONE 0.9 g (0.03 oz) POWER MODULE 102 g (3.6 oz)

DIMENSIONS

MICROPHONE

POWER MODULE 145.0 mm (5.71") long,

OUTPUT CONNECTOR Integral 3-pin XLRM-type

(power module)

CABLE 3.0 m (9.8') long (permanently

ACCESSORIES FURNISHED AT8537 power module; AT8439

†

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

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

Specifications are subject to change without notice.

= 10 microbars = 94 dB SPL

23.0 mm (0.91") long,

5.3 mm (0.21") diameter

21.0 mm (0.83") diameter

attached to microphone), 2.0 mm (0.08") diameter, 2-conductor, shielded cable with TA3F output connector that mates with TB3M jack on power module

cable clip; clothing clip base; viper clip base; magnet clip base and plate with lanyard; three single mic holders; two double mic holders; two windscreens; battery; protective carrying case

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

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

www.audio-technica.com