Hi Ricardo--I have one that has been sitting in a closet for 3 or so years (waaay too much stuff). It is nice, but does have a bit of hum with the couple of sets of speakers I used it with. I am the second owner of this Clarinet, and I believe I paid the original owner/builder $400.00 for it, but would be willing to let it go for a lot less than that, as I don't plan on using it anytime soon. It uses pretty much stock parts, but has Sonicap caps (not the platinums). PM me if interested.