SKU: 97870525203

Sennheiser SR IEM G4-C Monitor Transmitter, Evolution Wireless G4, 734-776MHz

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Description

Sennheiser SR IEM G4-C Monitor Transmitter, Evolution Wireless G4, 734-776MHzSennheiser SR IEM G4 C Wireless Stereo Monitoring Transmitter The Sennheiser SR IEM G4 C is a professional, half rack wireless stereo in ear monitoring (IEM) transmitter from the industry standard Evolution Wireless G4 series. Housed in a rugged, full metal chassis, it is engineered to deliver pristine, high fidelity monitor mixes with ultimate RF reliability for touring musicians, theater productions, houses of worship, and broadcast studios. This

Sennheiser SR IEM G4-C Wireless Stereo Monitoring Transmitter

The Sennheiser SR IEM G4-C is a professional, half-rack wireless stereo in-ear monitoring (IEM) transmitter from the industry-standard Evolution Wireless G4 series. Housed in a rugged, full-metal chassis, it is engineered to deliver pristine, high-fidelity monitor mixes with ultimate RF reliability for touring musicians, theater productions, houses of worship, and broadcast studios.

This specific variant operates on the C Band frequency spectrum (734.000 MHz to 776.000 MHz). This 42 MHz switching bandwidth provides up to 1,680 selectable frequencies, allowing engineers to anchor a clean, intermodulation-free RF link even in crowded local wireless environments.

Key System Performance and Integration Attributes

  • Variable RF Output Power: Features switchable RF transmission power—Low (10 mW), Standard (30 mW), and High (50 mW). This allows monitors to adapt natively to the environment, maximizing range and line-of-sight penetration on large festival stages while preventing intermodulation overload in tighter, multi-system studio spaces.

  • Sennheiser HDX Compander Technology: Utilizes Sennheiser’s proprietary HDX companding architecture to maximize the signal-to-noise ratio (greater than 90 dB). It drastically minimizes standard analog transmission hiss, ensuring studio-grade acoustic clarity across a flat 25 Hz to 15,000 Hz monitoring spectrum.

  • Network Integration & WSM Software Control: Outfitted with an integrated RJ45 Ethernet port, the transmitter hooks directly into network switches. This permits multi-channel coordination, remote tracking, and live RF environment charting using the Sennheiser Wireless Systems Manager (WSM) software platform.

  • Flexible Audio Routing Architecture: The back panel features dual balanced XLR-1/4" combo inputs for incoming stereo/mono mixes, alongside dual balanced Loop Out 1/4" TRS jacks. This allows the incoming monitor mix to be chained directly to adjacent transmitters or multi-track recording matrices without requiring passive signal splitters.

Technical Specifications Matrix

Feature Parameter Hardware Specification Profile
Model Reference Name SR IEM G4-C
RF Operational Band C Band Block (734.000 MHz to 776.000 MHz)
Switching Tuning Bandwidth Up to 42 MHz available within the C Band
Modulation Mode Alignment Wideband FM Stereo (MPX Pilot Tone architecture)
Frequency Bank System 20 Factory Banks (up to 16 presets) / 6 User Banks (16 programmable slots)
RF Output Power (at 50 Ohm) Switchable: Low (typ. 10 mW) / Standard (typ. 30 mW) / High (typ. 50 mW)
Audio Compander Matrix Sennheiser HDX
Audio Frequency Response 25 Hz to 15,000 Hz
Maximum Audio Input Level +22 dBu
Total Harmonic Distortion (THD) Less than or equal to 0.9% (at 1 kHz and nominal deviation)
Signal-to-Noise Ratio (S/N) Greater than 90 dB (at rated input and peak deviation)
Audio Input Nodes 2 x XLR-1/4" (6.3 mm) TRS Balanced Combo Sockets
Audio Loop Output Nodes 2 x 1/4" (6.3 mm) TRS Balanced Loop-Out Sockets
Network Interface Node 1 x RJ45 Ethernet Port
Antenna Interface Node 1 x BNC Socket (50 Ohm impedance)
Physical Housing Profile Half-Rack Space / Full-Metal Construction
Net Hardware Weight Approx. 980 grams

In the Box: Component Inventory

  • 1 x SR IEM G4 Stereo Monitor Transmitter (C Band)

  • 1 x Rod Antenna (BNC Connection)

  • 1 x GA 3 Rackmount Kit (For secure single/dual mounting into standard 19" audio racks)

  • 1 x NT 2-3 Power Supply with regional wall adapters

  • 1 x Quick Start Guide & 1 x Safety Instructions

Field Configuration and RF Best Practices

Stereo vs. Mono / Focus Mode Configuration: Ensure the transmitter’s internal menu match-pairs with your performer’s bodypack receiver setup. If you are sending two distinct monitor mixes (e.g., Mix 1 on Left, Mix 2 on Right), set the transmitter to Mono mode. This allows the performer to use Sennheiser's Focus Mode on their EK IEM G4 receiver to balance and pan between their own instrument/vocal volume and the global band mix natively from the stage floor.

Optimizing Antenna Line-of-Sight: To avoid dropouts and ensure standard 100-meter (300 feet) operational tracking, the BNC rod antenna should ideally be line-of-sight to the stage performers. If you are mounting the SR IEM G4 deep inside a metal flight case or server enclosure, use the included GA 3 front-mount hardware panel to bring the BNC connection straight to the front plate of the rack face, away from shielding metal chassis layers.

Shipping Notes
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SKU: 97870525203

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