Shure BRH440M, BRH441M - Broadcast Headset Manual

General Description

The BRH441M Broadcast Headset and the BRH440M Broadcast Stereo Headset are developed especially for use in broadcast and media production. Circumaural ear cups block out background noise, and the dynamic, cardioid microphone delivers natural, highly intelligible vocal reproduction. Wearable on the left or right side, the flexible boom features a flip up mute function that deactivates the microphone when raised vertically. A detachable cable with unterminated ends enables connection to a variety of devices, and is easily replaceable for a lifetime of use. The BRH440M features stereo monitoring, while the BRH441M leaves one ear open to the surrounding environment.

• Closed-back, circumaural design provides excellent isolation from background noise
• Dynamic microphone delivers natural, highly intelligible vocal reproduction with cardioid polar pattern and frequency response optimized for communication in loud environments
• Ergonomic, lightweight design with adjustable, padded headband for long wearing comfort
• Flexible boom microphone pivots 250 degrees for left or right side wear
• Flip-up mute function deactivates the microphone when boom is raised vertically
• Single-side, detachable cable with unterminated ends (stripped and tinned) enables connection to a variety of devices
• User-replaceable cable, earpads, and windscreen for a long product life
• Legendary Shure durability to withstand the rigors of professional use

Care and Maintenance

Clean using a soft, damp cloth.

Do not use cleansers that contain solvents. Keep liquid and foreign objects out of the driver openings.

Detachable Cable

Attach the cable by aligning the arrows and pressing firmly into place until locked.

Pull on the knurled collar to disengage lock and remove cable.

Wearing the Headset

Adjust the headband for a comfortable fit.

Position the boom so the microphone is within 13 mm (1/2 inch) of the corner of your mouth. To avoid "popping" or other breath noise, do not place directly in front of mouth.

The boom swivel allows the headset to be worn on either side of your face.

Flip-Up Mute Function

Swivel the boom vertically to the indented position at the headband to mute the microphone.

Specifications

Net Weight
without cable
BRH440M 343 g (12.1 oz.)
BRH441M 240 g (8.5 oz.)

Packaged Weight
BRH440M 0.8 kg (1.75 lbs)
BRH441M 0.69 kg (1.52 lbs)

Cable
Detachable cable (sold separately)

Environmental Conditions
Operating Temperature 18° to 60°C (0° to 140°F)
Storage Temperature -29° to 74°C (-29° to 165°F)
Relative Humidity 0 to 95%

Microphone

Type
Dynamic, Neodymium magnet, 13 mm

Polar Pattern
Cardioid

Frequency Response
50 to 15,000 Hz

Output Impedance
145 Ω

Sensitivity
at 1 kHz, open circuit voltage
66.5 dBV/Pa* (0.47 mV)

Polarity
Positive pressure on diaphragm produces positive voltage on pin 1 (red wire) with respect to pin 2 (black wire).

Headphone

Transducer Type
Dynamic, Neodymium magnet

Driver Size
40 mm

Frequency Response
20 to 18,000 Hz

Sensitivity
@ 1 kHz
101 dB SPL/mW

Impedance
@ 1 kHz
300 Ω

Maximum Input Power
1000 mW

Accessories

Replacement Parts

BRH Broadcast Cable Accessories

The following tables describe wiring for BRH detachable cables. All BRH detachable cables contain six conductors with discrete termination at the Shure 6-pin connector that plugs into the headset. For pre-terminated cables, conductors (and signal) are tied to common contacts at the other end of the cable where shown.

Connector Pin Diagram

BCASCA-NXLR4 (male connector)

BCASCA-NXLR4-FEM (female connector)

BCASCA-NXLR5 (male connector)

BCASCA-NXLR3QI

BCASCA1 (unterminated)

SAFETY PRECAUTIONS

The possible results of incorrect use are marked by one of the two symbols—"WARNING" and "CAUTION"—depending on the imminence of the danger and the severity of the damage.

Ignoring these warnings may cause severe injury or death as a result of incorrect operation.

Ignoring these cautions may cause moderate injury or property damage as a result of incor rect operation.

• Never disassemble or modify the device, as failures may result.
• Do not subject to extreme force and do not pull on the cable or failures may result.
• Keep the product dry and avoid exposure to extreme temperatures and humidity.

• If water or other foreign objects enter the inside of the device, fire or electric shock may result.
• Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.

This device is able to produce sound volume higher than 85 dB SPL. Please check your maximum allowed continuous noise exposure level based on your national employment protection requirements.

LISTENING TO AUDIO AT EXCESSIVE VOLUMES CAN CAUSE PERMANENT HEARING DAMAGE. USE AS LOW A VOL-UME AS POSSIBLE. Over exposure to excessive sound levels can damage your ears resulting in permanent noise-induced hearing loss (NIHL). Please use the following guidelines established by the Occupational Safety Health Administration (OSHA) on maximum time exposure to sound pressure levels before hearing damage occurs.

Documents / Resources

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Shure BRH440M, BRH441M - Broadcast Headset Manual