Audio-Technica ATW-901a Datasheet

PRO 8HEx

Hypercardioid Dynamic Headworn Microphone

Features

• Ideal for drummers, keyboard players, guitarists or anyone requiring hands-free operation

• High-ENERGY® neodymium element for articulate vocal reproduction

• Low-visibility headband provides stable, comfortable t

• Pivot-mounted exible mic boom descends from left or right side

• Hypercardioid polar pattern improves isolation of desired sound source

• Rugged design and construction for reliable performance

• Also available in a wireless model, PRO 8HEcW

pro series microphones

with a towel and permit them to air-dry. (Do not store in a closed space, such as a plastic bag, until all moisture has evaporated.)

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

Architect’s and Engineer’s Specications

The microphone shall be a moving coil dynamic designed for headworn use. It shall have a hypercardioid polar pattern with a uniform 100° angle of acceptance and a frequency response of 200 Hz to 18,000 Hz. Nominal open-circuit output voltage shall be 1.7 mV at 1 V, 1 Pascal. Output shall be low impedance balanced (600 ohms).

The microphone shall have a 2.2 m (7.2') permanently attached miniature cable, terminating in a 3-pin XLRM-type output connector.

The microphone shall be a headworn design with an element diameter of

20.4 mm (0.80"). Weight shall be 60 grams (2.1 oz). The microphone shall include a cable clip, a large windscreen and a small windscreen.

The microphone shall also be available in a wireless model with a

1.4 m (55") permanently attached miniature cable terminated with a locking 4-pin connector for use with Audio-Technica UniPak® body-pack transmitters. The wireless model dimensions, polar pattern and included large windscreen shall be identical to those of the wired model.

The Audio-Technica PRO 8HEx [PRO 8HEcW-wireless] is specied.

PRO 8HEx Description

The PRO 8HEx is a headworn dynamic microphone with a hypercardioid polar pattern. It is designed for use by performing musicians and others who require professional-quality vocal pickup with hands-free operation.

The microphone’s hypercardioid polar pattern provides a 100° angle of acceptance.

The microphone includes a 2.2 m (7.2') permanently attached miniature cable terminated with a 3-pin XLRM-type connector.

The microphone comes equipped with a cable clip, a large windscreen and a small windscreen.

PRO 8HEcW Description

The microphone is also available in a wireless model, the PRO 8HEcW. The PRO 8HEcW includes a 1.4 m (55") permanently attached miniature cable terminated with a locking 4-pin connector for use with Audio-Technica UniPak® body-pack transmitters. The PRO 8HEcW dimensions, polar pattern and included large windscreen are identical to those of the PRO 8HEx.

Operation and Maintenance

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.

For maximum stability and minimum visibility, the headband should be worn around the back of the head, with each cushioned support pad resting on the temple in front of the ear. The cable should remain clipped to the headband, with some slack at the boom connection. The headset is designed so the microphone descends from the left or right side.

After use in high-moisture applications, such as aerobics instruction, on-stage performing, etc., remove the foam screen, wipe off the headset

Specications

Element

Polar pattern

Frequency response

Open circuit sensitivity

Impedance

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

Specication s are subject to chang e without notice.

professional s on request.

= 10 microb ars = 94 dB SPL

363

PRO 8HEx

Dynamic Hypercardioid 200-18,000 Hz –55 dB (1.7 mV) re 1V at 1 Pa 600 ohms 60 g (2.1 oz) Microphone: 20.4 mm (0.80") diameter Headset: 120.0 mm (4.72") nominal at widest point, 80.5 mm (3.17") exible boom 3-pin XLRM-type on cable

2.2 m (7.2') long, 2.8 mm (0.11") diameter miniature audio cable permanently attached between microphone and XLRM-type connector M19 AT8439 cable clip; AT8139L large windscreen; AT8139S small windscreen

frequency response: 200 –18,000 Hz

10 dB

100

12" or more on axis

330˚

200

Frequency in Hertz

0˚

180˚

500

30˚

150˚

60˚

120˚

10k

90˚

LEGEND

200 Hz

1 kHz 5 kHz 8 kHz

LEGEND

polar pattern

300˚

270˚

240˚

210˚

SCALE IS 5 DECIBELS PER DIVISION

Response in dB

20k