Sennheiser SI 434

Sennheiser SI 434

The SI 434 (also written SI434) is an infrared stereo transmitter manufactured by the Sennheiser Corporation. It connects to hi-fi amplifiers and allows the one to use the Sennheiser infrared wireless headphones. Here are some of its features and specifications.

  • Infrared power: 100 mW
  • Frequency Response: 20 Hz to 20000 Hz
  • Carrier frequencies: 95 kHz (left channel), 250 kHz (right channel)
  • Dimensions 200 mm × 80 mm × 23 mm