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U859QL
Cardioid Condenser Quick-Mount Gooseneck Microphone
An integral 80 Hz high-pass UniSteep® lter provides easy switching
from a at frequency response to a low-end roll-off. The roll-off position
reduces the microphone’s sensitivity to popping in close vocal use. It also
reduces the pickup of low-frequency ambient noise (such as trafc,
air-handling systems, etc.), room reverberation and mechanically
coupled vibrations. To engage the UniSteep® lter, use the end tip of
a paperclip or other small pointed instrument to slide the switch toward
the “bent” line.
Avoid leaving the microphone in the open sun or in areas where
temperatures exceed 110° F (43° C) for extended periods. Extremely high
humidity should also be avoided.
Architect’s and Engineer’s Specications
The microphone shall be a xed-charge condenser designed for
permanent installation or portable applications. It shall have a cardioid
polar pattern with a uniform 120° angle of acceptance and a frequency
Features
• Quick-mount design with 3-pin XLRM-type connector insert at base
plugs into any standard XLRF-type surface or cable connector
• Uniform cardioid polar pattern with 120º acceptance angle
• Superior off-axis rejection for maximum gain before feedback
• Easy-to-adjust, rugged, small-diameter, alternating gooseneck
with virtually no “memory” permits quick positioning into
desired shape
• UniSteep® lter provides a steep low-frequency attenuation
to improve sound pickup without affecting voice quality
• Two-stage foam windscreen yields dramatically improved
resistance to P-pops and other breath blasts
response of 100 Hz to 16,000 Hz. The microphone shall operate from
an external 11V to 52V DC phantom power source. It shall be capable
of handling sound input levels up to 140 dB with a dynamic range of
111 dB. Nominal open-circuit output voltage shall be 7.0 mV at 1 V, 1
Pascal. Output shall be low impedance balanced (250 ohms).
The microphone shall incorporate a self-contained power module with
an XLRM-type connector at the base for direct connection to a mating
XLRF-type panel jack or cable connector. It shall include a recessed
switch to permit choice of at response or 80 Hz low-frequency roll-off.
A two-stage foam windscreen shall be included.
unipoint® microphones
Description
The U859QL is a wide-range condenser microphone with a cardioid
polar pattern. It is designed for quality sound reinforcement, professional
recording, television and other demanding sound pickup applications.
The small-diameter double gooseneck design permits highly exible
positioning while maintaining a smooth, well-contoured appearance. The
U859QL stands 480.0 mm (18.90") from the table or podium.
The microphone requires 11V to 52V phantom power for opertation.
The microphone’s cardioid polar pattern provides a 120° angle of
acceptance.
An XLRM-type connector insert at the base allows the microphone to be
plugged directly into an XLRF-type panel jack or microphone cable.
A switch permits choice of at response or low-frequency roll-off (via
integral 80 Hz high-pass UniSteep® lter) to help control undesired
ambient noise.
The microphone comes equipped with a two-stage foam windscreen.
The microphone is enclosed in a rugged housing with a low-reectance
black nish.
Installation and Operation
The U859QL requires 11V to 52V phantom power for 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.
The microphone shall be a small-diameter alternating gooseneck design,
with an overall length of 480.0 mm (18.90") and a head diameter of 12.3
mm (0.48"). Weight shall be 152 grams (5.4 oz). Finish shall be lowreectance black.
The Audio-Technica U859QL is specied.
The provided two-stage foam windscreen simply slips over the head of
the microphone, effectively reducing wind noise or popping.
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0.48"
12.2 mm
0.39"
10.0 mm
18.55"
471.0 mm
18.90"
480.0 mm
Specications
Element
Polar pattern
Frequency response
Low frequency roll-off
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Signal-to-noise ratio
Phantom power requirements
Switch
Weight
Dimensions
Output connector
Audio-Technica case style
Accessory furnished
In the intere st of standards develo pment, A.T.U.S. offers full
details on it s test methods to othe r industry
1 Pascal = 10 dynes/cm
1
Typical, A-weighted, using Audio Precision System One.
Specications are subject to change without notice.
professionals on request.
2
= 10 microba rs = 94 dB SPL
frequency response: 100–16,000 Hz
U859QL
Fixed-charge back plate, permanently
polarized condenser
Cardioid
100-16,000 Hz
80 Hz, 18 dB/octave
–43 dB (7.0 mV) re 1V at 1 Pa
250 ohms
140 dB SPL, 1 kHz at 1% T.H.D.
111 dB, 1 kHz at Max SPL
1
65 dB, 1 kHz at 1 Pa
11-52V DC, 2 mA typical
Flat, roll-off
152 g (5.4 oz)
480.0 mm (18.90") long,
12.3 mm (0.48") head diameter,
18.9 mm (0.74") base diameter
Integral 3-pin XLRM-type
M34
AT8153 two-stage foam windscreen
285
0.74"
18.9 mm
100
12" or more on axis
Roll-off
330˚
200
Frequency in Hertz
0˚
180˚
500
30˚
150˚
50
LEGEND
polar pattern
300˚
270˚
240˚
210˚
SCALE IS 5 DECIBELS PER DIVISION
10 dB
5k
2k
1k
60˚
120˚
10k
90˚
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
Response in dB
20k
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 0001-0132-01