I own a brand new, just out of the box Orange Terror Bass 500. I really like this amp. It has lots of power, a passive tone stack I love, good gain and lots of volume. And it's very lighweight. This is an excellent amp. However, I have issues. Let's be honest, we all have issues on this forum. I'm throwing an offer out there. I'd be willing to trade this amp straight up for a Mesa M6 Carbine. That's it. There's nothing else I'd trade for. Not selling. If you want a different tone, of less weight, or if you just have issues like me and want to trade me your M6, PM me. Thanks.