Item #1566662 Model #509157

Sennheiser EK Receiver for XSW IEM Band B


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An incredibly lightweight in-ear monitoring bodypack that can link additional receivers to one transmitter.

The EK Receiver for XSW IEM from Sennheiser is a lightweight in-ear monitoring bodypack that is part of the XS Wireless IEM series, compatible with both Band A and Band B. With XS Wireless IEM, you can easily link additional receivers to one transmitter, connecting more band members to a new level of detail. The lightweight bodypack remains unnoticed once clipped onto clothing or a belt. You can plug in the included IE 4 headphones or upgrade to the IE PRO series with the 0.137 in. (3.5 mm) output. The status LED shows battery and link status at-a-glance, while the front panel allows for individual fine-tuning, from balance to focus modes, EQ to Limiter, so you can design your individual mix.
  • Includes: XSW IEM EK Stereo Receiver, IE 4 In-ear headphones, 2 AA batteries, Quick Guide, Safety Guide, Compliance Sheet and Frequency Table
  • Modulation: Wideband FM
  • Frequency ranges: A 476-500 MHz, B 572-596 MHz
  • Switching bandwidth: Up to 24MHz
  • Nominal/peak deviation: ±15kHz / ±24kHz
  • Signal-to-noise ratio (1  mV, peak deviation): ≥88 dB 
  • Total harmonic distortion (THD): ≤ 1 %
  • AF output level at 0.137in. (3.5 mm): 2 x 1,25 Veff at 16 Ohm
  • High Boost (EQ): +10dB at 13kHz
  • Limiter: 10 dB
  • AF frequency response: 45Hz to 15kHz
  • Cross talk (50Hz - 10kHz): Typically 45dB
  • Temperature range: 0 °C to +40 °C
  • Power supply: 2 AA batteries, 1.5 V 
  • Nominal voltage: 3 V battery
  • Operating time: Approx. 6 hr. (depending on volume level) 
  • Dimensions: Approx. 3.74" x 2.75" x 1.02"
  • Weight (incl. batteries): 0.24 lb.
  • IE 4 Headphones transducer: Dynamic
  • Frequency response: 40-20.000Hz
  • SPL (1 kHz, 1 mW): 106dB
  • Nominal impedance: 6 Ohm


  • UHF bodypack receiver to expand existing XS Wireless IEM setups
  • Lightweight bodypack with rear clamp and stage-proof control panel
  • Standard 0.137 in. (3.5 mm) jack plug for supplied IE 4 headphones or optional in-ear sets
  • Backlit front panel and status LED for battery and link status
  • Menu access to receiver sound settings like focus modes, volume control, limiter and EQ
  • Pan control for individual balance of the input channels
  • Operates with two AA primary cells or rechargeable batteries