Sennheiser EW 300 G4-HEADMIC1-RC Wireless Omni Headset Microphone System

Sennheiser EW 300 G4-HEADMIC1-RC Wireless Omni Headset Microphone System

The Sennheiser EW 300 G4-HEADMIC1-RC is an easy-to-use rackmount wireless headset microphone system geared for business and educational applications. It offers professional-level features for enhanced reliability and control, including variable RF power, a wide tuning range, Ethernet networking for multichannel setups, and an intuitive interface with an OLED display and jog wheel. The system delivers high-quality, reliable audio to presenters, meeting participants, educators, and lecturers working in conference centers, schools, and universities.

The EW 300 G4-HEADMIC1-RC includes a true-diversity, half-rack receiver housed in a rugged, full-metal chassis. The receiver's auto-scan function searches a 50 MHz UHF tuning range with 2000 selectable frequencies available, seeking out a clean, interference-free channel for your audio transmission. The high-contrast OLED display with automatic dimming, along with a convenient jog wheel allows you to make quick adjustments, even in low-light situations.

The system comes with a silver SL Headmic 1 omnidirectional headset microphone and a remote-controllable SK 300 G4-RC bodypack transmitter for hands-free operation. The headset's lightweight, comfortable, and flexible design is discreet, stable, and easy to place over the ears. The transmitter provides up to 8 hours of operation on two AA batteries, with a selectable 10/30/50mW RF power output for overcoming interference in difficult RF environments. The transmission range is up to 330'.

The Ethernet connection on the receiver supports Wireless Systems Manager (WSM) and Sennheiser Control Cockpit software for management, monitoring, and advanced frequency coordination in multi-channel setups. Up to 32 wireless mics can operate simultaneously in the same space.

System

Wireless Technology Analog UHF

Number of RF Channel Frequencies 2000

Included Transmitters 1 x Bodypack

Diversity True Diversity

RF Frequency Band GBW: 606 to 678 MHz

RF Bandwidth 50 MHz

Frequency Step Size 25 kHz

Max Operating Range 330' / 100.6 m (Line of Sight)

Max Transmitters per Band 32

Deviation ±48 kHz (Peak)

Modulation Wideband FM

Receiver

Receiver Type Tabletop

Mounting Options Rackmount (with Included Hardware)

Rackmount Size 1 RU (1/2 Rack)

Antenna 2 x Rod, BNC (Rear-Mount)

Number of Audio Channels 1

Audio I/O 1 x XLR 3-Pin Male Balanced Output 1 x 1/4" TRS Female Unbalanced Output

Gain Range 48 dB (3 dB Steps)

Audio Output Level XLR Output: +18 dBu (Balanced) 1/4" Output: +12 dBu (Unbalanced)

Network I/O 1 x RJ45

Squelch Adjustable, 5 to 25 dBμV

Adjacent Channel Isolation >75 dB

Power Requirements AC/DC Power Adapter

AC/DC Power Adapter 12 VDC at 300 mA (Included)

AC Input Power 100 to 240 VAC, 50 / 60 Hz at 0.2 A

Display & Indicators 1 x OLED (AF Level, Channel, Frequency, Mute, RF Level, Transmitter Battery Status)

Housing Metal

Operating Temperature 14 to 131°F / -10 to 55°C

Dimensions 8.3 x 1.7 x 8" / 212 x 43 x 202 mm

Weight 2.2 lb / 980 g

Transmitter

Transmitter Type Bodypack

RF Output Power 10 / 30 / 50 mW

Audio I/O 1 x 1/8" / 3.5 mm TRS Female Input (Lockable)

Muting Mute Switch

Audio Input Level 3 V RMS

Gain Range 60 dB (3 dB Steps)

Frequency Response 80 Hz to 18 kHz (Mic) 25 Hz to 18 kHz (Line)

Sync Method IR

Antenna 1 x Flexible Whip, Fixed (Beltpack)

Power Requirements Battery

Battery Type 2 x AA (Included)

1 x Sennheiser Battery Pack (Not Included, Replaceable)

Approx. Battery Life 8 Hours (Alkaline)

Display & Indicators 1 x Backlit LCD (Audio Level, Battery Status, Channel, Group, Mute, Signal Strength)

Housing Metal

Operating Temperature 14 to 131°F / -10 to 55°C

Dimensions 2.5 x 3.2 x 0.9" / 64 x 82 x 24 mm

Weight 5.6 oz / 160 g (with Batteries)

Microphone

Microphone Type Headset

Color Silver

Sound Field Mono

Capsule Electret Condenser

Polar Pattern Omnidirectional

Frequency Range 20 Hz to 20 kHz

Equivalent Noise Level 27 dB

Maximum SPL 143 dB SPL

Peak Sensitivity 5 mV/Pa

Output Connectors 1 x 1/8" / 3.5 mm TRS Male Unbalanced (Lockable)

Cable Length 5.25' / 1.6 m

Operating Voltage 4.5 to 15 V

Weight 0.25 oz / 7 g