BLUSTREAM OPT41AU 4 way optical switch/DAC
BLUSTREAM OPT41AU 4 way optical switch/DAC BLUSTREAM OPT41AU 4 way optical switch/DAC BLUSTREAM OPT41AU 4 way optical switch/DAC
BLUSTREAM OPT41AU 4 way optical switch/DAC
Warranty Period: N/A Sold as: 1


Our OPT41AU is an advanced 4-way optical audio switch. Perfect for the integration of multiple audio sources with a soundbar. The OPT41AU also has a built in DAC and simultaneous digital and analogue stereo audio outputs. The OPT41AU supports 192kHz sample rates and up to 24-bit resolution for enhanced sound reproduction.



  • Features 4x optical SPDIF digital inputs which can be switched to single optical output
  • DAC (Digital to Analogue Audio Converter) converts selected optical digital to analogue left/right stereo audio output
  • Built-in digital audio converter converts selected optical audio input to coaxial digital output
  • Outputs optical digital, coaxial digital and analogue left/right stereo audio concurrently
  • Supports sample rates 32kHz, 44.1kHz, 48kHz, 96kHz & 192kHz up to 24-bit resolution
  • Supports LPCM, DTS, Dolby Digital and Dolby Digital plus when used as a straight digital in / digital out switcher
  • Ultra low jitter and high fidelity design
  • Input selection button on front panel to toggle between optical inputs
  • IR receiver on front panel to switch inputs and turn On / Off audio outputs using supplied IR remote
  • External IR input can be used to extend IR with Blustream IR receiver cable


  • Audio Input Connectors: 4x Optical (SPDIF)
  • Output Connectors: 1x Optical (SPDIF), 1x RCA (SPDIF) & 1x Analogue audio L/R (3.5mm stereo Jack)
  • IR Input Ports: 1x 3.5mm stereo Jack
  • Product Dimensions (WxDxH): 140 x 80 x 25mm (with connections) 
  • Product Dimensions (WxDxH): 140 x 70 x 25mm (without connections)
  • Product Weight: 0.25kg (excluding accessories)
  • Carton / Box Dimensions (WxDxH): 210 x 125 x 90mm
  • Shipping Weight: 0.5kg
  • Operating Temperature: 32°F to 104°F (0°C to 40°C)
  • Storage Temperature: -4°F to 140°F (-20°C to 60°C)
  • Power Supply: 5V / 1A DC, screw type connector
  • Mounting kit included

Product Faqs

  • What can I plug into my DAC?

    DAC's will usually have a number of inputs. Coaxial and Toslink Optical are the most common, while USB is still also very common.

    The Optical and Coaxial connections can have a CD player, network streamer, television, dvd/blu-ray disc player, game console, and some computers.

    The USB input can handle pretty much any kind of computer, or a phone with the appropriate adapter (OTG for android, Camera Connect Kit for iOS devices).

  • What is a DAC?

    Every digital device with an analog output has a Digital to Analog Converter of some kind. In the case of phones, televisions, and computers, they are usually stuck on as an afterthought, or just to do the job of creating analog sound to be amplified and played through speakers.

    Having a standalone DAC is a worthwhile investment in any modern Hi-Fi system, essentially all the circuitry involved in creating that signal you can hear from the 1's and 0's is housed in its own box, with usually a much better design than what you would find in your television or computer.

    A DAC can be useful to connect digital devices to an analog amplifier if the amplifier doesn't have digital inputs. Or if you are after a cleaner, more refined sound.

    Things to listen for in higher quality DAC's are separation of sounds (how well you can hear a single voice or instrument in the mix of all the others), "textures" of sounds (raspyness of a bow being drawn across the strings of a double bass), or the clarity of echo's and quiet noises among loud instruments.