JTS SIEM-111TR In Ear Monitor System

  • £545.00
  • (FREE UK Delivery)
+ In Stock Now   |   Usually dispatched within 24 hours
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This complete stereo In Ear Monitor System offers an all in one solution for stage monitoring. Includes SIEM111T stereo transmitter, SIEM111R Stereo body pack transmitter, IE-1 ear pieces. This system can also be switched to mono and, with additional body pack, be run as a dual mono system.

  • There are 961 selectable UHF channels available. As many as 16 sets of SIEM-111T transmitters can operate on the same stage.
  • The system offers 4 groups, with each group having 16 compatible preset channels to choose from. This allows the monitor engineer to set up systems quickly and easily
  • MPX Stereo Audio Transmission / Reception, switchable to Mono operation if desired
  • All metal case construction on the SIEM 111R and SIEM 111T
  • The JTS advanced circuitry assures outstanding signal-to-noise ratio
  • IE-1 and IE-6 earphones seal off the ear canal with JTS designed Dyna-Driver ear buds which reduce undesired stage noise, ambient sound levels
  • 3 pairs of different sized Silicon sleeves included with the IE series earphones ensure a right fit for the users ear canal and comfort


  • Output Connector: 3.5mm (1/8)
  • Carrier Frequency Range: 606-642Mhz
  • LCD Display: RF Level, Lock-On, Battery Fuel Gauge, Stereo/Mono, HF booster, Dynamic Limiter, Group, Channel, Mute, Frequency
  • Power Supply: 2x AA
  • Earphone output: 60mW
  • Input Level Select Switch: 0dB / -10dB
  • Minimum Load Impedance: 16Ω
  • Typical Battery Life: 12+ Hours

JTS SIEM-111T : 

  • RF Outputs: 10mW
  • Frequency Deviation: ±40KHz
  • Carrier Frequency Range: 606-642Mhz
  • LCD Display: AF Level, Stereo/Mono, Attenuation Level, Group, Channel, Frequency
  • Audio Input Impedance: 20kΩ
  • Norminal Input Level: -10dBV; 0dBV (ATT -10dBV)
  • Maximum Input Level: 10dBV; 20dBV (ATT -10dBV)
  • Audio Input Connector: 2x Balanced XLR / 6.3mm Jack Combo Socket
  • Audio Output Connector: 1x 3.5mm (1/8") Stereo Jack, 1x 6.3mm (1/4") Stereo Jack
  • Loop Out Connector: 2x Balanced Loop out socket
  • Switching Power Supply: 100-240V Switch mode power supply


Here at Prebeat, our goal is to dispatch and deliver your order as quickly possible. Our orders are sent fast and tracked with either DPD or FedEx. You will also receive the tracking by text and/or email once the order is dispatched.  

Smaller orders which are under £50 and small in size will be shipped using Royal Mail's 48 Hour Tracked service.  

Delivery on orders over £50 to mainland UK is free. For orders under £50, the charge is just £3.95. Orders for non mainland UK destinations (see our main delivery page) are free when you spend £100.

Please check the product page for details of how long delivery will take as it is shown for each product depending on where it is located. 


You can buy from us knowing you have 30 days to return an item for a full refund, as long as that item is returned in its brand new and unused condition. For full details of our Returns Policy, see our main Returns page.

All of our products also have a manufacturer's warranty of a minimum of 1 year. Should a product be faulty within 30 days of purchase, just contact us and we will arrange the return at our cost for a replacement. After the 30 day period, you will need to return the item for repair under warranty.

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