I have just a little more info on the 312. Not much though, because specs and manuals have not been posted yet. The 312 uses the newer ICE chip also sported in the 501. It delivers 500W into 8 Ohms doubling to 1000W into 4 Ohms. Handles have been added to the chassis. The price appears to have increased by $300, but the unit can be purchased slightly below the new price without handles. A first production run appears to be ready for shipping. I have no other technical details at this time. Will post here as I learn more about it.