Any recommendations on a headphone amp? I currently practice 95% of the time without an amp and found out the hard way the downside to it. Had my first lesson with an instructor today (taking the advice of many of you). He naturally wanted to see me play to critique my technique. I thought that I show off a bit with a great line from "Boogie on Reggae Women" I play it all the time without an amp and it sounds pretty nice. Did I suck with an amp, though! The instructor was very gracious and complimented my choosing such a challenging piece. I did not realize how hard I had been playing nor did I use any muting. Anyway, the only headphone amps that I have seen are made by Dean (bass in a box) and Rockmans (Bass Ace). I did a search here but did not come up with much except a mention of a Korg ( pandora px-b(?)) If anybody was wondering why I don't practice with an amp it is because I practice at work and can't use one without disturbing others. When I am home, my family has a fit when I amp. My amp does not have a headphone jack unfortunately.