User Manual
Omnidirectional Condenser Boundary Microphone
U841R
■
Features
■
Description
■
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
Omnidirectional in hemisphere above mounting surface
40-20,000 Hz
-35 dB (17.7 mV) re 1V at 1 Pa
200 ohms
130 dB SPL (1 kHz at 1% THD)
105 dB (1 kHz at Max SPL)
69 dB (1 kHz at 1 Pa)
11-52 V DC, 2 mA typical
84 g
65.0 mm diameter, 15.1 mm maximum height
•
1 Pascal = 10 dynes/cm
2
= 10 microbars = 94 dB SPL
*
Typical, A-weighted, using Audio Precision System One.
■
Polar pattern
■
Frequency response
■
Dimensions
10 dB
1k
10k
100k
100
10
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com
21-JUN-2018 Form No.ATGC-L0360-18
Response in dB
Frequency in Hertz
LEGEND
0°, 50cm
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
(Unit: mm)
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 U841R is a wide-range condenser microphone with an omnidirectional polar
pattern.
It is designed for surface-mount applications such as high-quality sound reinforce-
ment, conferencing, professional recording, television and other demanding sound
pickup applications.
The microphone requires 11V to 52V phantom power for operation.
The microphone includes a 7.6 m detachable miniature cable with a special
TA3F-type connector that attaches to the microphone and an XLRM-type output
connector.
The microphone comes equipped with a soft protective pouch. The microphone's
heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of
surface vibration to the microphone. The microphone features a low-reflectance
black finish.
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
• Small-diameter omnidirectional capsule near boundary eliminates phase
distortion and delivers clear, high-output performance
• Superior off-axis rejection for maximum gain before feedback
• UniGuard® RFI-shielding technol-ogy offers outstanding rejection of radio
frequency interference (RFI).
• Self-contained electronics eliminate need for external power module
• Heavy die-cast case and non-slip silicon foam bottom pads minimize coupling
of surface vibration to the microphone
• Low-profile design with low-reflectance finish for minimum visibility
■
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.
TB3M-type
Element
Polar pattern
Frequency response
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Signal-to-noise ratio*
Phantom power requirements
Weight
Dimensions
Output connector
Cable
7.6 m long, 3.2 mm diameter, 2-conductor,
shielded cable with TA3F-type and XLRM-type connectors
Roll-off
65.0
Soft protective pouch
Accessories furnished
15.1
65.0
180°
150°
120°
90°
60°
30°
0°
330°
300°
270°
240°
210°
