Audio-Technica U841R Users Manual

Specifications

180°

0°

1k 10k 20K10040

U841R

User Manual

Omnidirectional Condenser Boundary Microphone

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.

Features

• Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations

• UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)

• Self-contained electronics eliminate need for external power module

• Small-diameter capsule near boundary eliminates phase distortion and delivers clear, high-output performance

• Heavy die-cast case and non-slip silicone foam bottom pads minimize coupling of surface vibration to the microphone

• Low-profile design with low-reflectance finish for minimum visibility

Safety precautions

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.

Cautions for 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.

Element

Polar pattern Omnidirectional in hemisphere above mounting surface

Frequency response 40-20,000 Hz

Open circuit sensitivity -35 dB (17.7 mV), (0 dB = 1 V/Pa, 1 kHz)

Impedance 200 ohms

Maximum input sound level 130 dB SPL (1 kHz at 1% THD)

Dynamic range 105 dB (1 kHz at Max SPL)

Signal-to-noise ratio 69 dB (1 kHz at 1 Pa, A-weighted)

Phantom power requirements 11-52 V DC, 2 mA

Dimensions 65.0 mm (2.56") diameter, 15.1 mm (0.59") height

Output connector TB3M-type

Included accessories Pouch

• 1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL

For product improvement, the product is subject to modification without notice.

Fixed-charge back plate, permanently polarized condenser

Weight 84 g (3.0 oz)

7.6 m (25.0’) long, 3.2 mm (0.13") diameter, 2-conductor,

Cable

shielded cable with TA3F and XLRM-type connectors

Polar pattern

330°

300°

270°

240°

210°

SCALE IS 5 DECIBELS PER DIVISION

30°

60°

LEGEND

200Hz

90°

1kHz 5kHz 8kHz

120°

150°

Frequency response

-10

-20

-30

Frequency in Hertz

LEGEND

0°, 50cm

10 dB

Dimensions

Response in dB

Notes on use

• The microphone should be placed on a flat, unobstructed mounting surface. The sound source should not be below the plane of the mounting surface.

• Audio-Technica has developed a special RFI-shielding mechanism, which is an integral part of the connectors in the UniPoint® line. If you remove or replace the connectors, you may adversely affect the unit's RFI immunity.

• Placing any object on a surface (such as a conference table) before its finish is fully cured may result in damage to the finish.

Connection procedure

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.

Output terminals

PIN1 (ground)

PIN3 (cold)

PIN2 (hot)

This product requires 11-52 V DC phantom power.

15.1

7600

(Unit: mm)

Warranty (Please be sure to read the notes below.) For USA Only

End-User LIMITED WARRANTY information for the USA is available at www.audiotechnica.com/usawarranties. You may also contact Audio-Technica U.S., Inc. to request a written copy of the Limited Warranty at 1-330-686-2600 or via mail at 1221 Commerce Drive, Stow, OH 44224.

Audio-Technica Corporation

Made in Japan

142315960-01-02 ver.2 2017.08.31

ver.1 2017.05.02