Here’s the Party In A Box dock / speaker system by Soul Electronics (rapper Ludacris’ line of audio products). This system is big enough to dock an iPad comfortably, but comes with both AirPlay and Bluetooth connectivity and a 5.8GHz transciever able to stream uncompressed CD audio or hook up with wireless speakers – but who cares, it sports analog VU-meters!
Speaker-wise there’s dual 6.5" subwoofers, two 3" midrange speakers and four 1" tweeters. Power-wise you can run it on a 110/240V power supply, a 12V cigarette lighter adapter or just regular batteries if you want to take it with you.
From the product page:
“The PIAB P910 is the ultimate wireless, high performance entertainment system. Unmatched in its class, this innovative system generates the dynamic sound of a full home theater system in the form of a portable and stylish box. A powerful 8-speaker omnidirectional hybrid system fills the room with unparalleled deep bass, and crystal clear mids and highs, while wireless technology allows streaming of music through Bluetooth.”
(…oh, and there’s HDMI as well, allowing you to hook it up to your TV).