This is a Triode Ruby amplifier (^^) I've taken great care of it, so it's in very beautiful condition (^^) I'm selling it because I have a family now and don't listen to music as often. It's small and doesn't take up much space, and it was great as interior decor (^^) I used it frequently for about a year after I bought it, but I haven't used it much since then. Thank you (^^)