Sennheiser SI29-5/NT
IR Xmitter,5Ch,Rackmount


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List Price: $5,379.00
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Each of these one-rack-space-high modulators can handle up to five narrowband channels and has the capability of being daisy-chained with additional SI29-5s to configure systems of up to 32 channels. Using Phase Locked Loop frequency synthesis, the five channels can be programmed to transmit on any of the 32 available frequencies. If systems of less than five channels are required, non-active channels may be turned off, resulting in increased transmission range from SZI 1029 or SZI 1015 emitter panels. The SI 29-5 requires an NT 29-120 AC power supply.


  • Five narrowband channels
  • Programmable to transmit on any of 32 frequencies


  • Modulation: Narrow-band FM
  • Nominal/peak deviation: +/-6kHz / +/-7kHz
  • Amplitude limitation: Limiting amplifer (max 30dB)
  • Deviation display: peak / 5dB / 1dB / 0dB / -1dB / -3dB / -5dB / -7dB / -10dB / -15dB / -20dB
  • Audio channels per chassis: 5
  • Channel frequencies: 55Hz - 1,335kHz
  • AF inputs I: Transformer balanced XLR-3F sockets, optional phantom powering
  • AF inputs II: 25-pin sub-D connector, in parallel with AF inputs I, optional phantom powering
  • Input Sensitvity: 50mV - 3V (line), optional 0.5mV - 30mV (microphone)
  • AF frequency response: 50Hz - 12,000Hz
  • THD: <0.5%
  • AF signal-to-noise ratio: > 75dB(A) eff
  • RF output: 2 x BNC, short-circuit proof
  • RF cascading socket: 2 x BNC
  • Output impedance: 50 ohms
  • Suppression of harmonics: > 60dB
  • Power supply: 12VAC, via plug-in mains unit
  • Power consumption: max 17W
  • Dimensions: 19.09" x 1.77" x 13.39"


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