I got these speakers of ebay a few months ago, and I hvae to say I am VERY happy with them.
My band visited a small home studio to record some demos and the guy recording us had a pair of M audio bx5 speakers. I wanted to get those ones but they were too expensive, so I spotted these on ebay and bagged them for £50. To me they sound exactly the same - such a good quality sound is produced from these speakers, and the bass boost is amazing.
Each has a 3.25" low frequency driver and a 1" high frequency driver, which give a really accurate frequency response. The speakers are self powered and provide 10watts per channel, they sound louder than this to me really.
Wood cabinets, magnet shielding (to stop interference form other things), vented port for extra bass, extremely portable and comes with stands for 'sweep spot'.
The speakers have RCA rear panel inputs, and handy front panel 1/8" aux input and output.
I use these speakers to listen to music, play games, watch films and record my own music. They are extremely good speakers and I would confidently suggest them to anyone looking for good speakers on a budget.