Single Speaker Stereo

  • What is this all about ?

        This is a loudspeaker which plays stereo signal through a single box using 3 fullrange drivers. 

  • How does this work and what kind of sound does it give ?

       The sound is spacious and the speakers tends to disappear, the imaging is very special and very pleasant to listen to. With some recordings 3D effect is incredible.  It works with the help of room reflections by steering the signal to left, right and front. This speaker needs room reflections to work best. Usually opposite is true with ordinary stereo loudspeakers. 

  • What other advantages vs ordinary stereo  ?

      It is single speaker so it takes less space. It is designed to work standing against the wall so does't require any distance from the front wall. Because it "likes" room reflections it fits many rooms. Perfect for background music listening.

  • Is it a new concept  ? Are there other alternatives ?

       The concept is old but the implementation is quite different from others. I know only one commercial alternative which is a little similar to this. These are stereolith speakers. Another is DIY implementation on here.

single speaker stereo closeup.jpeg
  • Where can i listen to them and what is the price?

       Vilnius, Lithuania is the location for now. But listening should be done at your place. It is never a good idea to buy a loudspeakers without testing at your place. So if you are interested you have to contact me first. Price is 4500 Eur.

                                              More details about this speaker

       It is an active speaker with auto power on/off for streaming purposes. It is Plug and Play device with only power cord needed. It has

two main modes: normal and night mode.

   Normal mode for centre panned signal works as monopole source just with more balanced power response compared to ordinary speakers. Because high frequencies are spread in all directions the same as low. For side panned signal the sound is more focused to the side. And for pure side signal when phases are opposite for right and left channel the speaker acts as dipole with dipole axis looking at the front. So listener gets very little direct sound compared to reflected from side walls.   

   Night mode in short is an extreme special case where listener is left without direct sound. Sound reminds being somewhere around the corner when the concert in a city street is going on. No direct sound just reflected sound. But just without late reflections. This technically makes the speaker to work more like dipole speaker and so the low frequencies are reduced. High pressure lows give stress feeling and doesn't help at night listening situation. More reflected sound creates ambience atmosphere and relaxed feel. Usually very nice sounding. This sound pattern i liked so much that decided to make this mode available to choose. 

    Modes are selected with the help of the switch located on the back side of the speaker and are instant in response.

    The second switch on the back side is used for Tube mode, but can be customised for customer if needed. Tube mode adds very small amount of second harmonic. It softens highs psychoacousticaly, but technicaly doesn't alter frequency response. 

    Speaker accepts Airplay, DLNA, and Roon streaming over WiFi or Ethernet connector. 

    Speaker doesn't use passive filters. Active filtering is more accurate,  and doesn't add any distortions. Also it means that driver current is directly controlled by the amplifier. And filters can be any type.

    Speaker is driven by a top quality mixed mode Baffles amp/dac board. Most of audio band is driven with current drive amplifier and low frequencies by voltage amplifier. Everything is on purpose, developed from scratch.

    Speaker is a solid piece of hardware made from oak. It weights 50kg. Surface finish is a professional grade wood oil for interior use. In my opinion oil finish gives more natural feel.

Some more technical info is in Tech corner. 

back side
back side

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Baffless Single Speaker Stereo
Baffless Single Speaker Stereo

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Baffless Single Speaker Stereo
Baffless Single Speaker Stereo

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back side
back side

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