Sennheiser EW 100 G4-945-S Wireless Microphone System
Sennheiser EW 100 G4-945-S Wireless Microphone System
Sennheiser EW 100 G4-945-S Wireless Microphone System
Overview
The Sennheiser EW 100 G4-945-S is a professional-grade wireless microphone system from the Evolution G4 series, designed for live vocals, speech, and on-stage applications. It includes the SKM 100 G4-S handheld transmitter (with Mute switch), the MMD 945-S (e945) supercardioid dynamic capsule, and the EM 100 G4 half-rack receiver. The package also comes with the GA3 rack kit and an RJ10 link cable for multi-receiver linking.
Key Features
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True Diversity half-rack receiver built with a durable metal housing and a high-contrast LCD display, easy to operate
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IR Sync enables one-touch synchronization between transmitter and receiver for quick setup
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Link Function supports daisy-chain configuration of up to 12 systems, ideal for multi-channel stage environments
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Supports up to 20 channels and 1,680 selectable frequencies within a switching bandwidth of up to 42 MHz (stable UHF tuning)
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Transmission range of approximately 100 meters (line-of-sight), depending on the environment
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RF output up to 30 mW (country-dependent), delivering strong and stable signal performance
Sound Quality & Microphone Capsule
The MMD 945-S (e945) is a supercardioid dynamic capsule engineered for professional lead vocals. It provides excellent side and rear noise rejection, making it ideal for loud or complex stage environments.
Core Specifications (Short)
EM 100 G4 (Receiver)
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Example frequency range: 748.2–757.8 MHz
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Switching bandwidth: up to 42 MHz
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Output: XLR +18 dBu / 6.3 mm (¼”) +12 dBu
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S/N ratio: ≥ 110 dBA
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THD: ≤ 0.9%
SKM 100 G4-S (Transmitter)
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Dimensions: Ø50 × 265 mm
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Weight: ~450 g (with batteries)
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RF output: up to 30 mW
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Operating time: ~8 hours (AA batteries or BA-2015 accupack)
MMD 945-S Capsule
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Dynamic supercardioid
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Max SPL: 154 dB SPL
Operating temperature: −10 °C to +55 °C
Recommended Applications
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Small to medium live stages
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Clubs, theatres, houses of worship
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Seminars, corporate events
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Live recording setups requiring high signal reliability
What’s Included
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EM 100 G4 receiver
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SKM 100 G4-S handheld transmitter (with installed capsule)
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MMD 945-S capsule
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GA3 rack kit
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RJ10 linking cable
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Microphone clip
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User manual
Usage Notes
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Check local RF regulations and allowable transmission power before operation
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Recommended to use high-quality batteries or the BA-2015 rechargeable pack for continuous use
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