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Production: Obsolete
Hire stock: Yes
New stock: No
Used stock: Yes
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Sennheiser EW522H
Another Sennheiser classic radio mic kit comprising SK500 bodypack transmitter with Audio-Technica ATM73a head worn cardioid, condenser mic and EM500 diversity receiver.

HDX noise reduction system
Programmable frequency
Programmable sensitivity: (-30dB/-20dB/-10dB/0dB)
Programmable squelch: (0dB to 40dB in 5dB steps) 
Programmable name display

Specifications EM500 receiver:
Frequencies: 16 switchable
Switching bandwidth: 32Mhz
Nominal deviation: 24kHz
Peak deviation: < 48kHz
Frequency stability: < 15ppm
AF frequency response: 60 - 18kHz
Signal-to-noise ratio: >110dB (A)
THD: <0.9% @ 1kHz
Squelch threshold: 0-100uV, adj
Outputs: balanced XLR3: 10dB
             unbalanced jack: +4dB
Level adjustment: 0-40dB
Power supply: external 10.5 - 16VDC
Power consumption: 200mA
Dimensions: 212x145x38mm
Weight: 1.1kg
SK500 transmitter/ATM73a:
Transducer: condenser omni
Sensitivity: -55dB
Sound pressure: 135dB SPL
RF output: typ. 30mW
Powered by 1 x 9V alkaline battery
Operating time >8hours
Dimensions: 110x65x22mm
Weight: 255g

Post 2012 compliant* on channel 70.
Check here for UK radio mic frequency allocations

Bulk batteries available on sale-or-return with radio mic hire

Also available to hire with a choice of mini lapel mics or handheld

Price to rent        Full Sennheiser price list       

2010 - superceded by the G3 system


Sennheiser EW522 diversity lapel wireless mic kit

Audio-Technica ATM73a head worn condenser microphone


  • Sixteen switchable preset memory locations (using any of the 1280 available frequencies) within UK range 838 - 870MHz
  • Bodypack transmitter with choice of microphone capsule
  • Battery status indicator with remote display of power levels on receiver
    Peak-hold level indicator
  • Headphone output on receiver for monitoring quality and level of received signal
  • Soundcheck mode allows artist or engineer to perform their own on-stage level check - unassisted.

Although obsolete, we
have some original or replacement parts available for Sennheiser Evolution Series wireless kits:

  • Mains PSUs,
  • Receiver antennas,
  • Transmitter antennas
  • choice of microphones, clips, windshields
  • Locking connector plugs.


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