Sennheiser SP230 Portable Two-Channel Modulator-Emitter

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  • Regular price $2,499.95
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The SP230 from Sennheiser is a compact and portable two-channel modulator/emitter. It operates at high sub-carrier frequencies to avoid interference from fluorescent lighting. Ideally suited for medium-sized conference and meeting rooms, it is easy to set up the device on a mic stand or podium, and you only need to connect it to a wall outlet and connect an audio source such as a microphone or tape recorder.

If desired, the SP230 can remotely power an SZI1015 medium area emitter panel for additional coverage. Additional SP230 units may be daisy-chained for more coverage as well.


  • Compact and portable modulator/emitter
  • Operates at 2.3MHz on Channel 1 and 2.8MHz on Channel 2 to avoid interference from fluorescent lighting
  • Coverage area of 4000 square feet in single-channel mode and 2000 square feet in two-channel mode
  • Great for medium-sized meeting or conference rooms
  • Easy to use, just connect to power and connect an audio source
  • Additional units may be connected for expanded coverage
  • Can remotely power one SZI1015 emitter panel for added coverage


  • Carrier Frequency: 2.3 and 2.8MHz
  • Coverage Area 
    • 4000 Sq. Ft. (Single-Channel)
    • 2000 Sq. Ft. (Two-Channel)
  • Connectors 
    • 2 x XLR Mic-Level Inputs
    • 2 x 1/4" Line-Level Inputs
    • 2 x 1/4" Line-Level Outputs
  • Dimensions (WxDxH): 10 x 7 x 8.5" (254 x 178 x 216mm)
  • Weight: 9.5 lbs (4.3kg)