Go buy the Sonic Chair!
This is a chair with three speakers in the circle and one speaker in the back for the "kick-in-the-butt". It can play from any audio device and gives you an amazing audio experience. Although the sound level seems high when seated, when you get up out of the chair the volume is reasonable.
The chair is hand-made in Cologne and we might give them a visit in the near future.
More info: http://www.sonicchair.de/