I've used the Fostex headphones for casual listening for a number of years, but only recently started using them while playing live music and found the volume wanting. I'm not after an expensive amp, just something that will do the job. I don't particularly mind if it's a portable amp or not...

I've done a bit of research but haven't been able to uncover too much information about these phones. My pads are several years old and have gone flaky, so I'm looking for something to replace them with. Any suggestions? Thanks in advance..