I wouldn't use one. I didn't even see a price but you'd be better off with a pair of squids and a mini disc or something. Only 128mb of onboard memory, and the compression is going to be severe. Also look at the freq response at the different compressions. The best is only 100-17k, and the next highest is 100-8k. Nevermind the fact that they would likely distort like crazy at concert spl's.