I have a mint US amps ax1000. PLEASE READ!!!! they are normally designed to put out 1000 rms at 4 ohm mono,high voltage, I had US amps make mine do 1000 rms @ 2 ohm mono instead. The "guts" of my amp are a US1000. Florida made. This amp cost me $800 in june. would let it go for $525 shipped IF I sell it. please let me know if your interested. Give me email for pics,It looks just like the ax1000 on US amps website. It's still installed so no pics of underside, but plexiglass bottom in excellent.