The Sennheiser SR IEM G4 is a professional half-rack stereo in-ear monitoring transmitter designed for reliable wireless monitoring in live performance, theatre, touring, worship, and broadcast applications. Built with a rugged full-metal housing and intuitive OLED display, the SR IEM G4 delivers clear, consistent audio transmission with flexible frequency management and dependable RF performance for demanding stage environments.
Key Features
Professional stereo IEM transmitter
Rugged full-metal half-rack chassis
High-visibility OLED display
Infrared sync with compatible receivers
Up to 16 compatible channels
Up to 42 MHz switching bandwidth
1680 selectable frequencies
Transmission range up to 100m
Adjustable RF output power up to 50mW
Compatible with Sennheiser WSM software
Available in multiple frequency band variants depending on region
Built for Professional In-Ear Monitoring
The SR IEM G4 is ideal for:
Touring musicians
Theatre productions
Worship productions
Corporate events
Broadcast environments
Live bands
Production communication monitoring
Its stereo transmission capability allows performers and crew to receive:
Clear monitor mixes
Precise stereo imaging
Consistent wireless performance across large stages and venues
Reliable UHF Wireless Performance
Operating within professional UHF frequency ranges, the SR IEM G4 provides:
Flexible frequency coordination
Stable RF performance
Reliable operation in busy wireless environments
Fast deployment for touring and live productions
With up to:
42 MHz tuning bandwidth
1680 selectable frequencies
16 compatible channels simultaneously
the system is suitable for:
Full band IEM deployments
Theatre cast monitoring
Large-scale event productions
Clear Audio Across the Full Frequency Spectrum
The SR IEM G4 is engineered to deliver:
Detailed stereo monitoring
Strong low-frequency response
Clear vocal reproduction
Consistent audio clarity across the full spectrum
This makes it ideal for:
Musical performance monitoring
Playback systems
Theatre orchestra monitoring
Cue and communication feeds
Flexible Wireless Synchronisation
Infrared sync functionality enables:
Fast transmitter-to-receiver pairing
Quick setup during productions
Simplified frequency coordination
The transmitter is also compatible with:
Sennheiser Wireless Systems Manager (WSM) software
Centralised frequency management systems
Multi-device monitoring setups
Long-Range Transmission
With transmission distances up to:
100 metres / 300 feet
the SR IEM G4 provides reliable stage coverage for:
Large theatres
Arenas
Outdoor events
Touring productions
Professional Build Quality
The durable full-metal housing is designed for:
Touring reliability
Rental inventory use
Daily professional operation
Rack-mounted production systems
The OLED display provides quick access to:
Frequency settings
RF output levels
Audio settings
System monitoring information
Ideal Applications
The Sennheiser SR IEM G4 is perfect for:
Wireless in-ear monitoring systems
Theatre productions
Concert touring
Worship audio systems
Broadcast IFB applications
Playback monitoring
Live event production
Why Choose the Sennheiser SR IEM G4
Professional stereo wireless IEM transmitter
Reliable UHF RF performance
Flexible multi-channel frequency coordination
Durable touring-grade metal construction
Fast infrared synchronisation
Long transmission range
Excellent audio clarity for demanding live environments