User Manual
UniLine™ Condenser Hanging Microphones U853RU / U853RWU
■Features
■Notes on use
■Connection procedure
This product requires 48 V
DC phantom power.
Output terminals
PIN1 (ground)
PIN3
(cold)
PIN2 (hot)
■Specifications
Fixed-charge back plate, permanently polarized condenser
Line Cardioid (Unidirectional)
30-20,000 Hz
80 Hz, 18 dB/octave
-35 dB (17.7 mV) re 1V at 1 Pa
250 ohms
135 dB SPL (1 kHz at 1% THD)
115 dB (1 kHz at Max SPL)
74 dB (1 kHz at 1 Pa)
11-52 V DC, 2 mA typical
Flat, roll-off
Power module: 92.9 mm long, 18.9mm diameter
Microphone: 30 g, Power module: 81 g
Microphone: 156.0 mm long, 12.2 mm diameter,
•1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL
*Typical, A-weighted, using Audio Precision System One.
■Polarpattern
■Frequency response
■Positioning
180°
150°
120°
90°
60°
30°
0°
330°
300°
270°
240°
210°
10 dB
1k 10k 100k10010
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com
17-AUG-2018 Form No.ATGC-L0361-18
Response in dB
Frequency in Hertz
LEGEND
0°, 50cm
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
Thank you for purchasing this product. Before using the product, read through
the user manual to ensure that you will use the product correctly.
Please keep this manual for future reference.
The U857RU require 11V to 52V phantom power for operation. A uniform 90°
angle of acceptance provides well-balanced audio pickup over a narrow area.
Avoid leaving the microphone in the open sun or in areas where temperatures
exceed 43°C for extended periods. Extremely high humidity should also be
avoided.
Connect the output terminals of the microphone to a device that has a
microphone input (balanced input) compatible with a phantom power supply.
The output connector is an XLRM-type with polarity as shown in the figure
below.
For product improvement, the product is sublect to modification without notice.
10
0
-10
-20
-30
20
• Designed for suspension over choirs, instrumental groups and theater stages
• UniLine™ polar pattern provides narrow 90° acceptance angle
• Superior off-axis rejection for maximum gain before feedback
• UniGuard™ RFI-shielding technol-ogy offers outstanding rejection of radio
frequency interference (RFI).
• UniSteep®filter provides a steep low-frequency attenuation to improve sound
pickup without affecting voice quality
• Accepts interchangeable elements to permit angle of acceptance from 90° to
360°
• Low-profile design with low-reflectance finish for minimum visibility
• Available in two colors: black (U853RU) and white (U853RWU)
■Safety precaution
■Cautions for the product
Although this product was designed to be used safely, failing to use it correctly
may result in an accident. To ensure safety, observe all warnings and cautions
while using the product.
• Do not subject the product to strong impact to avoid malfunction.
• Do not disassemble, modify or attempt to repair the product.
• Do not handle the product with wet hands to avoid electric shock or injury.
• Do not store the product under direct sunlight, near heating devices or in a hot,
humid or dusty place.
Integral 3-pin XLRM-type
Element
Polar pattern
Frequency response
Low Frequency response
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Signal-to-noise ratio*
Phantom power requirements
Switch
Weight
Dimensions
Output connector (Power module)
Cable 7.6 m long, 3.2 mm diameter, 2-conductor shielded
cable, terminated with TA3F-type connector
Roll-off
UE-C cardioid (120°)
UE-H hypercardioid (100°)
UE-O omnidirectional (360°)
Optional interchangeable elements
Accessories furnished
U853AU -
U853AWU -
Both -
AT8154 two-stage foam windscreen;
AT8451 steel hanger
AT8154(WH) two-stage foam windscreen;
AT8451(WH) steel hanger
AT8538 power module, AT8438 5/8"-27 stand adapter
90°
ANGLE OF
ACCEPTANCE
DISTANCE "X"
LESS THAN 2 TIMES "X"
1.5 TIMES
DISTANCE "X"
90°90°
MIC A MIC B
