Sennheiser XSW Iem Ek (a : 476 - 500 MHZ)

A Key Component in the XS Wireless IEM Ecosystem

In an in-ear monitoring setup, the receiver is often the most discreet element... yet it makes all the difference daily. The Sennheiser XSW IEM SR in Band A (476 - 500 MHz) embodies the spirit of the XS Wireless IEM series: quick setup, reliable operation in rehearsal and live performance, and the ability to expand your system without complicating your setup. Practically, you can connect additional receivers to your transmitter: each receives the main mix and then adapts it to their preferences directly from their bodypack.

Who Is This IEM Receiver Ideal For and What Are Its Uses?

This pocket stereo receiver is designed for musicians, singers, technicians, and performers who want a clear, consistent, and controlled in-ear monitor on stage. It is perfectly suited for bands wishing to equip multiple members with the same transmission base while maintaining individual control over their listening.

Its bodypack format with clip is unobtrusive yet practical to handle between songs. You maintain stable monitoring without relying on stage wedges, with a sense of precision useful for rhythmic placement, tuning, and dynamic management.

Stage Settings: Immediate Personalization, Audible Results

An Interface Designed to Keep You Focused on Performance

The receiver emphasizes efficiency: a status LED allows quick verification of battery life and wireless connection, while the backlit LC display only activates when needed. The control panel is designed to minimize accidental adjustments, a real advantage in live conditions.

Adjustable In-Ear Mixing: Balance, Modes, and Personal Control

Each user can tailor their listening comfort: mix balance, focus modes, and pan control to manage the individual balance of input channels. The result is a more intelligible, often more relaxing, and more consistent monitoring experience from one show to another.

Treble EQ and Limiter: Comfort, Clarity, Protection

When the in-ear monitoring lacks airiness, the dedicated equalization adds brightness through treble boost at 13 kHz. To maintain a safety margin against unexpected peaks, the built-in limiter helps contain strong and sudden signals: an essential feature to preserve your hearing comfort, especially on tour or in high-dynamic environments.

Earphone Compatibility and Easy Connection

The 3.5 mm mini-jack output easily accepts the included IE 4 in-ear monitors, while allowing upgrade options to other earphones, notably from the IE PRO range. The bodypack operates on 2 AA batteries (primary or rechargeable), offering an estimated runtime of about 6 hours depending on volume level.

Technical specifications

Category	receiver	Outputs	jack
Frequency band	A1 – 470 à 516 MHz

Type	UHF pocket receiver designed to extend existing XS Wireless IEM configurations	Total harmonic distortion (THD)	1%
Format	lightweight pocket receiver with rear clip and stage-optimized control panel	AF output level at 3.5 mm	2 x 1.25 Vrms at 16 ohms
Output	3.5 mm mini-jack for in-ear monitors (IE 4 included or optional models)	Treble boost (equalization)	+10 dB at 13 kHz
Display	backlit front panel and status LED (battery and connection)	Limiter	-10 dB
Settings via menu	focus modes, volume control, limiter, equalizer	AF frequency response	45 Hz to 15 kHz
Control	pan for individual input channel balance	Crosstalk (50 Hz - 10 kHz)	approx. 45 dB
Modulation	wideband FM	Power supply	2 AA batteries, 1.5 V
Frequency ranges	A 476 - 500 MHz; B 572 - 596 MHz; C 662 - 686 MHz; E 823.2 - 831.8 MHz; K 925.2 - 937.3 MHz	Nominal voltage	3 V battery / 2.4 V rechargeable battery
Frequency band switching	up to 24 MHz	Battery life	approx. 6 hours
Normal / peak deviation	+/-15 kHz / +/-24 kHz	Temperature range	0degC to +40degC
Squelch	10 uV, fixed	Dimensions	approx. 95 x 70 x 26 mm
Signal-to-noise ratio (1 mV, peak deviation)	88 dB	Weight (with batteries)	approx. 110 g