Data Sheet

unipoint
®
microphones
U855QL
Cardioid Dynamic Gooseneck Microphone
Features
• Designed for use as a high-quality talk-back, paging & dispatch
microphone in entertainment, commercial and industrial applications
• Extremely rugged all-metal construction for long-lasting
performance
• Quick-mount design with 3-pin XLRM-type connector insert at base
plugs into any standard XLRF-type surface or cable connector
• Low-prole element provides uniform cardioid polar pattern with
120º acceptance angle
• Easy-to-adjust, rugged gooseneck permits quick positioning
• Frequency response tailored for excellent intelligibility in
environments with excessive ambient noise
• Cardioid polar pattern reduces pickup of sounds from the sides
and rear, improving isolation of desired sound source
• Protective screen reduces wind noise and “popping” when used
in close talking situations
U855QL Description
The U855QL is a moving coil dynamic microphone with a cardioid polar
pattern. It is designed for use as an extremely durable, high-quality
talk-back, paging and dispatch microphone in entertainment, commercial
and industrial applications.
The versatile gooseneck design allows for exible positioning and
dependable performance. Its custom-tailored frequency response ensures
excellent intelligibility in environments with excessive ambient noise.
The U855QL stands 448 mm (17.64") from the table or podium.
An XLRM-type connector insert at the base allows the microphone to
be plugged directly into an XLRF-type panel jack or microphone cable.
The microphone is enclosed in a rugged housing with a low-reectance
black nish.
Installation and Operation
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.
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. It shall have a cardioid
polar pattern and a frequency response of 150 Hz to 16,000 Hz. Nominal
open-circuit output voltage shall be 2.2 mV at 1V, 1 Pascal. Output shall be
low impedance balanced (600 ohms).
The microphone shall have an XLRM-type connector at the base for
direct connection to a mating XLRF-type panel jack or cable connector.
The microphone shall be an adjustable gooseneck design, with an overall
length of 448.0 mm (17. 64") and a head diameter of 30.0 mm (1.18").
Weight shall be 278 grams (9.8 oz). Finish shall be low-reectance black.
Specications
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
SCALE IS 5 DECIBELS PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚
0˚
150˚
120˚
90˚
30˚
60˚
12" or more on axis
LEGEND
Frequency in Hertz
Response in dB
10 dB
100
50
200
10k
5k
1k
500
2k
20k
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
SCALE IS 5 DECIBELS PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚
0˚
150˚
120˚
90˚
30˚
60˚
12" or more on axis
LEGEND
Frequency in Hertz
Response in dB
10 dB
100
50
200
10k
5k
1k
500
2k
20k
frequency response: 150–16,000 Hz polar pattern
Dynamic
Cardioid
150-16,000 Hz
–53 dB (2.2 mV) re 1V at 1 Pa
600 ohms
278 g (9.8 oz)
448.0 mm (17.64") long,
30.0 mm (1.18") head diameter,
19.0 mm (0.75") base diameter
Integral 3-pin XLRM-type
S8
Element
Polar pattern
Frequency response
Open circuit sensitivity
Impedance
Weight
Dimensions
Output connector
Audio-Technica case style
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
Specications are subject to change without notice.
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
©2010 Audio-Technica U.S., Inc. audio-technica.com 0001-0272-00