Sennheiser XSW IEM SR A – Half-Rack Stereo Transmitter
Sennheiser XSW IEM SR A – Half-Rack Stereo Transmitter is backordered and will ship as soon as it is back in stock.
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Product Overview
The Sennheiser XSW IEM SR (A band, 476-500 MHz) is a single half-rack UHF stereo transmitter for the XS Wireless IEM in-ear monitoring series. This XSW IEM SR transmitter sends a stereo monitor mix to XSW IEM EK bodypack receivers for stage, worship, and broadcast monitoring. It ships with an antenna and power supply and is the transmitter component for expanding or replacing units in an XSW IEM deployment. AV teams use it to add a personal monitor channel to an existing wireless monitoring setup.
Product Description
The XSW IEM SR is a half-rack-width transmitter that broadcasts a stereo audio feed over UHF to compatible XSW IEM bodypack receivers. It accepts a line-level stereo input from a mixer or monitor send and transmits in FM stereo, giving performers a clear personal monitor mix without floor wedges. The unit operates in the A frequency range (476-500 MHz) with a switching bandwidth of up to 24 MHz, organized into frequency banks with aligned channels so multiple systems can run together.

The transmitter delivers an audio frequency response of 45 Hz to 15 kHz with a signal-to-noise ratio of at least 88 dB and an RF output power of 30 mW in the A band. Its half-rack form factor pairs with a rack mount kit for clean installation in a standard equipment rack alongside other live sound and broadcast gear. The included antenna and power supply mean the unit is ready to coordinate frequencies and go on air. Because it is sold as a single transmitter, integrators can scale the number of monitor channels to match a band, worship team, or production. It is a direct match for the XSW IEM EK receiver and the IE 4 earphones used across the XS Wireless IEM family. This makes the XSW IEM SR a practical building block for personal monitoring in commercial AV and live production environments.
Key Features
- Half-Rack Stereo Transmitter — The compact half-rack unit broadcasts a stereo monitor mix to XSW IEM bodypack receivers.
- UHF A-Band Operation — The transmitter operates in the 476-500 MHz range with up to 24 MHz switching bandwidth for frequency coordination.
- FM Stereo Transmission — Audio is sent in FM stereo with a 45 Hz to 15 kHz response and a signal-to-noise ratio of at least 88 dB.
- 30 mW RF Output — The A-band RF output power of 30 mW supports reliable coverage across typical stage and platform areas.
- Antenna and Power Supply Included — The unit ships with an antenna and power supply so it is ready to coordinate and deploy.
- Rack-Mountable Form Factor — The half-rack chassis pairs with a rack mount kit for clean installation in a standard equipment rack.
- XS Wireless IEM Compatibility — It works directly with XSW IEM EK receivers and IE 4 earphones in the XS Wireless IEM series.
Typical Applications
- House of worship platform and stage monitoring
- Auditorium and live performance monitoring
- Broadcast studio talent monitoring
- Multi-purpose rooms hosting live music or presentations
- Commercial meeting spaces with stage presentation audio
Technical Specifications
| Manufacturer Part Number (SKU) | 509151 |
| Model | XSW IEM SR (A band) |
| Product Type | Wireless Microphone Systems (IEM Transmitter) |
| Frequency Range | A: 476-500 MHz |
| Switching Bandwidth | Up to 24 MHz |
| Modulation | FM stereo |
| AF Frequency Response | 45 Hz - 15 kHz |
| Signal-to-Noise Ratio | ≥ 88 dB |
| RF Output Power (A band) | 30 mW |
| Form Factor | Half-rack (rack-mountable) |
| Included | Transmitter, antenna, power supply |
| Vendor | Sennheiser |
Frequently Asked Questions
What does the XSW IEM SR connect to?
It transmits a stereo monitor mix to XSW IEM EK bodypack receivers in the XS Wireless IEM series. It accepts a line-level stereo input from a mixer or monitor send.
Which frequency range is this version?
This is the A band variant, operating from 476 to 500 MHz with a switching bandwidth of up to 24 MHz. Confirm the A band is legal and clear for wireless use in your location before deployment.
Can it be rack-mounted?
Yes. The half-rack chassis pairs with a Sennheiser rack mount kit so it installs cleanly into a standard equipment rack alongside other gear.
Is everything needed to operate included?
The transmitter ships with an antenna and a power supply. You will need compatible XSW IEM EK receivers and earphones to complete a monitoring channel.
How does it integrate with my mixer?
The transmitter takes a stereo line input, so it connects to a mixer's monitor send or aux output in standard live sound, worship, and broadcast signal chains. For integration help, contact Creation Networks at https://creationnetworks.net.
Can I run multiple systems at once?
Yes. The switching bandwidth and frequency banks with aligned channels allow multiple XSW IEM systems to be coordinated together, subject to local RF conditions.
What warranty and support apply?
Sennheiser wireless systems carry the manufacturer's warranty. Contact Creation Networks at https://creationnetworks.net for current warranty terms and integration support.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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