I just gaffer taped a few midi speakers together and used a T-amp which runs from battery or a 12v mains adaptor. Works a treat.![]()
I bought a logitech pure-fi anywhere ipod dock that has an aux input (3.5mm jack) and that sounds great. It's got a built in rechargable battery that last for ~8 hours of constant playback. Definitely worth a look IMO.
I was going crazy for a pair of decent portable speakers during the summer and the best I found were the JBL on tour ones. They're obviously not anything special but as far portable speakers go they're nice and loud and run off AAA batterys.
Just get some off ebay if they're the silicon standard plastic ones I'm thinking of.