Originally Posted by smbsocal
Here is a reply from Outlaw audio in regards to the 2220 changes:
The input stage on the Model 2220 has been improved. It also has an input switch to help lower noise.
The front panel on the Model 2200 was much bulkier with more aluminum. The faceplate of the Model 2220 has been more streamlined and, while brushed aluminum, weighs significantly less.
The Model 2200 did not have a max power output of 600w, but it did have a max power consumption of 600w - as does the Model 2220. Both amplifiers are Class G.
And the 2220 is almost twice as tall as the 2200.
3.2, Ascend Acoustics Sierra RAAL Towers, Ascend Acoustics Duo LCR center, dual SVS SB-3000 subs, Outlaw 2200 LCR monoblocks, Denon X3500H