I have no idea if it is the same company. Keith Marshall made transmission line speakers in the 80's/90's but the switched to regular front ported sytems. He now has 2 models the Spirit 2 and Spirit 3. I was thinking of maybe trading in my Aria SE for the Spirit 3. But I haven't heard them yet. And it depends a bit on if I get a nice trade in deal. I am a bit worried if you can have a nice bass responce with a 2 way system. The mid/bass is a Scanspeak 17cm Revelator met sliced paper conus with a Scanspeak Revelator Ring Radiator tweeter.
But if anyone has any ideas about them or heard the let me know.
But if anyone has any ideas about them or heard the let me know.