Digital Audio SPDIF 4x4 Switch



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The SMA-AM44 enables to users to manage four digital audio signals (SPDIF over fiber optics) across four digital audio outputs. Byusing the latest in digital connections, the device delivers the utmost in quality audio, with numerous audio formats supported, includingDTS-HD, Dolby-TrueHD, LPCM2.0, DTS, Dolby-AC3 and DSD. As A/V products continue to move into the digital realm, including thelatest Blu-ray players, for example, this digital audio matrix provides a simple plug-and-play solution for digital audio routing.


  • Four SPDIF fiber optic inputs and four SPDIF fiber optic outputs
  • Supported formats: DTS-HD, Dolby-TrueHD, LPCM2.0, DTS, Dolby-AC3, DSD
  • Supports signal retiming
  • Switching and control through front panel buttons
  • Retains memory of output configuration after powering off and on
  • Built in over-voltage protection
  • LED status indicator lights
  • No loss of quality
  • Plug-and-play ready


  • Home Theatre
  • Control Rooms
  • Production Studios
  • PA Systems
  • A/V Presentations
  • Meeting Rooms

 Back View







Supported Audio Formats DTS-HD, Dolby-TrueHD, LPCM2.0, DTS, Dolby-AC3, DSD
Peak Wavelength 650nm
Max Baud Rate 16Mbps
Max Working Current 100mA
Power Adapter Format Input:AC (50HZ, 60HZ) 100V-240V; Output: DC5V/500mA
Operating Temperature Range (0 to +40℃)
Operating Humidity Range 5 to 90%RH (No Condensation)
Dimension 2.12in L x 2.12in W x 0.93in H
Weight 0.8 lbs (35g)