Sennheiser SP230
Portable Audio IR Emitter


Our Price: $2,499.95
List Price: $3,129.00
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The SP 230 is a compact, portable two-channel self-contained modulator/emitter in one unit that operates at higher sub-carrier frequencies thus avoiding interference from fluorescent lighting. It is especially well-suited to medium sized conferences and meeting room applications, as it can be set up easily on a podium or microphone stand and requires only the simple connection of a microphone, tape recorder (or similar audio source), and a wall outlet. It can remotely power one SZI 1015 medium area emitter panel for up to 4,000/2,000 sq. ft. of additional coverage (single-/two-channel mode). 


  • Modulator/emitter combination
  • Operates at 2.3 MHz on channel 1, and 2.8 MHz on channel 2
  • Switchable single- (4,000 sq. ft. coverage) or two-channel (2,000 sq. ft. coverage) operation
  • Additional SP 230s, SZI 1015, or SZI 1029 emitter panels may be daisy-chained for greater coverage
  • Features two line-level inputs, two mic-level inputs and two line-level outputs
  • Can remotely power one SZI 1015 emitter
  • Includes barrier strip for easy system expansion


  • Subcarrier frequency 2.3 and 2.8 MHz (switchable or stereo)
  • Transmission area
    4,000 sq. ft. single-channel
    2,000 sq. ft. two-channel
  • Inputs
    Two XLR balanced mic-level
    Two 1/4" unbalanced line-level phone jacks
  • Outputs
    Two 1/4" line-level
  • Power requirements 110 V AC
  • Dimensions in inches 10" w x 7" d x 8.5" h
  • Weight 9 lbs., 8 oz.
  • Power supply 29 V DC internal

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