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PRO 8HEx
• Professional-quality vocal pickup with hands-free operation
• Ideal for guitarists, keyboard players, drummers and others who
need the use of their hands during performance
• Hi-ENERGY
®
neodymium element for articulate vocal
reproduction
• Low-visibility, lightweight headband and cushioned support pads
provide stable, comfortable fit
• Pivot-mounted flexible mic boom descends from left or right side
• Hypercardioid polar pattern improves isolation of desired sound
source
• Also available as: PRO 8HEcW — 55" (1.4 m) cable terminated
with locking 4-pin connector for A-T UniPak
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. For a high-impedance (Hi-Z)
mic input, connect a Lo-Z balanced cable to a Hi-Z matching
transformer (A-T CP8201 or equal) at the equipment input.
For maximum stability and minimum visibility, the adjustable
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.
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.
HYPERCARDIOID DYNAMIC HEADWORN MICROPHONE
™
wireless systems
PRO 8HEx SPECIFICATIONS
†
ELEMENT
POLAR PATTERN
FREQUENCY RESPONSE
OPEN CIRCUIT SENSITIVITY
IMPEDANCE
WEIGHT
DIMENSIONS
HEADSET
MICROPHONE
OUTPUT CONNECTOR
CABLE
ACCESSORIES FURNISHED
† 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
2
= 10 microbars = 94 dB SPL
Specifications are subject to change without notice.
Polar Pattern
0
330
30
300
60
90
270
240
120
50
100
210
150
180
LEGEND
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
www.audio-technica.com
P51685-EN
©2004 Audio-Technica U.S., Inc.
Dynamic
Hypercardioid
200-18,000 Hz
–55 dB (1.7 mV) re 1V at 1 Pa*
600 ohms
2.1 oz (60 g)
4.72" (120.0 mm) nominal at widest
point;
3.17" (80.5 mm) flexible boom
0.80" (20.4 mm) diameter
3-pin XLRM-type on cable
7.2' (2.2 m) long, 0.11" (2.8 mm)
diameter miniature audio cable
permanently attached between
microphone and XLRM-type
connector
AT8139L large windscreen;
AT8139S small windscreen;
AT8439 clothing clip
Frequency Response
200
500
1k
2k
5k
10k
20k
Frequency in Hertz
12" or more on axis
Printed in U.S.A.
10 dB
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