Sennheiser

Sennheiser EM 100 G4 Rackmount Receiver (Renewed)

Professional rackmount wireless receiver delivering true diversity reception for reliable audio in live and studio environments.

$288.00*$399.95Save 27%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Sennheiser EM 100 G4 is a true diversity rackmount receiver from Sennheiser's well-established Evolution Wireless G4 100 Series. Designed for presenters, performers, and audio engineers who need clean, uninterrupted wireless audio, it employs two independent antenna circuits that continuously compare signal strength and switch seamlessly to avoid dropouts. The receiver features an easy-to-read LCD display, one-touch frequency sync with compatible G4 transmitters, and up to 20 compatible frequency presets per bank — making it straightforward to deploy in multi-channel environments.

This renewed unit has been inspected and tested to meet factory performance standards, offering a cost-effective entry point into Sennheiser's professional wireless ecosystem. The half-rack form factor means two EM 100 G4 units can sit side by side in a standard 19-inch rack when paired with the optional GA3 adapter. With balanced XLR and unbalanced 1/4-inch outputs, it integrates smoothly into most PA systems, mixers, and recording setups. For anyone needing solid wireless reception without the complexity of higher-tier systems, the EM 100 G4 delivers reliable performance in a clean, professional package.

Key Features

Rackmount true diversity receiver , GA3 rackmount not included, frequency range: A1 (470 - 516 MHz)

Specifications

Brand
Sennheiser
Model
EM 100 G4
Receiver Type
True Diversity
Frequency Range
A1: 470 – 516 MHz
Mounting
Rackmount (GA3 adapter not included)
Condition
Renewed

Pros & Cons

👍 Pros

  • True diversity reception provides reliable, dropout-resistant wireless audio performance.
  • Compact half-rack design allows pairing two units side by side in a single rack space.
  • Pilottone squelch and advanced frequency management help avoid interference in crowded RF environments.
  • Straightforward front-panel controls and LCD display make setup and monitoring easy.
  • Renewed pricing offers significant savings over buying new while maintaining professional-grade performance.

👎 Cons

  • GA3 rackmount adapter is not included and must be purchased separately for rack installation.
  • Limited to the A1 frequency band (470–516 MHz), which may not be available in all regions.
  • Only compatible with the 100 Series G4 transmitter line, not the higher-tier 300 or 500 Series.
  • Renewed condition means the unit may have minor cosmetic imperfections.
  • No Dante or AES output — only offers unbalanced and balanced analog audio connections.

Frequently Asked Questions

The A1 variant operates in the 470–516 MHz frequency range. Check local regulations to ensure this range is available in your area.
No, the GA3 rackmount adapter is sold separately. Without it, the receiver can still be used as a tabletop unit.
True diversity means the EM 100 G4 uses two independent receiver sections with separate antennas, automatically switching to whichever signal is stronger to minimize dropouts.
It pairs with Sennheiser Evolution Wireless G4 100 Series transmitters, including the SK 100 G4 bodypack and SKM 100 G4 handheld, as long as they are set to the same frequency band.
This unit has been professionally inspected, tested, and restored to full working condition. It may show minimal cosmetic wear but performs like new.