This could be the best compressor in the business. It’s the TX version made with Origin’s proprietary output transformer. It sounds lush with a 9V power source, absolutely gorgeous with an 18V and it is no longer being produced. There are a few small scratches and some Velcro on the back but it works flawlessly and all the LEDs and knobs do what they’re supposed to do. It revolutionized my sound, but I've got bills to pay, so off it must go. These have been going for as much as $700. I would prefer a sale but could be looking for trades +/- cash if you have a high quality compact bass preamp and/or class D power amp, or something else cool. Let me know!