Sennheiser EM 100 G4-A Rackmount true diversity receiver. Includes (1) GA3 rack kit, frequency range: A (516 - 558 MHz) - 509653

Product Overview

The Sennheiser EM 100 G4-A is a professional rackmount wireless receiver operating in the 516–558 MHz frequency range (A band). Designed for the Evolution Wireless G4 Series, it delivers reliable true diversity reception for stage, broadcast, and AV installation environments. Compatible with the full range of G4 transmitters, this half-rack receiver is a versatile foundation for any wireless microphone setup. Available at Creation Networks for professional AV integrators and touring sound engineers.

Product Description

The EM 100 G4-A rackmount receiver brings professional-grade wireless reception to the Evolution Wireless G4 ecosystem. Operating in the 516–558 MHz A-band frequency range, this unit supports up to 20 compatible frequencies per bank and offers a frequency range of 42 MHz for interference-free operation. The receiver features true diversity reception, which uses two antennas and two independent tuners to select the stronger signal in real time, dramatically reducing dropouts in complex RF environments. A bright, easy-to-read display provides at-a-glance monitoring of RF level, audio level, battery status, and frequency. The EM 100 G4 connects via XLR and 6.3mm jack outputs, making integration with mixers, recorders, and amplifiers straightforward. Automatic frequency scanning helps users find clean channels quickly, even in RF-dense venues. The receiver supports Sennheiser's Wireless Systems Manager software for centralized channel coordination and remote monitoring. An optional GA 3 rack adapter allows mounting two units in a single 1U space, ideal for multi-channel deployments.

Key Features

• A-Band Frequency Range (516–558 MHz) — 42 MHz bandwidth with up to 20 compatible frequencies per bank for interference-free operation.
• True Diversity Reception — Dual antenna/tuner system selects the stronger signal in real time, minimizing dropouts.
• Automatic Frequency Scanning — Quickly identifies open channels even in RF-congested environments.
• XLR and 6.3mm Jack Outputs — Balanced and unbalanced outputs for flexible integration with professional audio systems.
• HD Clear Audio Mode — Transmits audio with more dynamic range and less compression for improved vocal and instrument clarity.
• Wireless Systems Manager Compatible — Remote control and frequency coordination via Sennheiser software.
• Half-Rack Form Factor — Pairs with GA 3 adapter to fit two units in 1U of rack space.
• Easy Battery Monitoring — Displays transmitter battery life in hours remaining on the front panel.

Typical Applications

• Live vocal performance for bands and solo artists on stage
• Corporate AV installations requiring reliable wireless audio
• Broadcast studios and ENG/EFP field production
• Houses of worship with challenging RF environments
• Multi-zone PA systems in conference centers and auditoriums

Technical Specifications

Frequently Asked Questions

What transmitters are compatible with the EM 100 G4-A?

It is compatible with all G4 100 Series transmitters including the SK 100 G4 bodypack, SKM 100 G4 handheld, and SKP 100 G4 plug-on, all in the A-band frequency range.

Can I use this receiver with G3 transmitters?

Yes, the EM 100 G4 is backwards compatible with G3 transmitters operating in the same frequency band.

How do I mount two EM 100 G4 units in a rack?

Use the optional Sennheiser GA 3 rack adapter, which allows two half-rack units to fit in a single 1U rack space.

Does it support Sennheiser Wireless Systems Manager?

Yes, the EM 100 G4 is compatible with Sennheiser's WSM software for remote frequency management and monitoring over a network.

What is the difference between A-band and A1-band models?

The A band covers 516–558 MHz, while the A1 band covers 470–516 MHz. Both are G4 variants; choose based on your local RF environment and regulatory frequency allocation.