A tone-cabinet design in which one or more speakers are rotated or in which a baffle is rotated to produce a mechanical vibrato/tremolo effect.
"I got a chance to listen to the CD last night and I am very, very impressed with the contents. I think you spent a lot of time with the one song I was most interested in, "You + Me = Love", and it really shows. The percussion instruments sound so clear, it makes the song sound fresh and alive. After listening to the same song over and over ..."