This the brand new vox vt100x, this model just came out earlier this year. A beast of an amp, and at 100 watts you'll never need for more volume...very loud and sounds prestine. Like new, only had it for a few months and it's never left the stand. Can emulate any amplifier out there and does it well. Auto bias feature let's you bias the tube drive on the fly, very cool. Can also program any feature with Vox tone room app and your smart phone, if you have the proper cable. You've got to hear this if you've never been around one, you'll be amazed.