The SIEM-111 System features reliable JTS UHF PLL technology.
‧ 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.

Carrier Frequency Range 502~960 MHz
RF Output Power 10 mW
Nominal Frequency Deviation
(modulation) ±40KHz
Audio Input Impedance 20kΩ
Nominal Input Level -10 dBV ; 0 dBV (ATT-10 dBV)    
Maximal Input Level 10 dBV ; 20 dBV (ATT-10 dBV)
LCD Display AF Level, Stereo/Mono, Attenuation Level, Group, Channel, Frequency
Audio Input Connector 2 x Balanced XLR /Ø6.3mm phone Combo Socket
Audio Output Connector 1 x 1/8” Stereo Phone Jack
1 x 1/4” Stereo Phone Jack
Loop Out Connector 2 x Balanced Loop Out Socket
Switching Power Supply 100-240V Switching power supply