Note that while AT3 replaces the models from AT2, you can still open your AT2 presets, although they may sound slightly different using the 'remastered' models. Oddly, this didn't seem to incorporate patches from our other IK amps, which is a shame. Moving on, there's a whole new set of presets to contend with, and a new preset browser page with various categories. Overall, the new cabinet implementation is wonderful, and the only shame is that you can't import your own impulse responses into it. This enables you to artificially inflate or contract the size of the cabinet (75% to 125%). Rounding things off is the cabinet size control.
You'll also find a selection of five room types: amp closet, small studio, mid studio, large studio and hall. Once again, you can adjust it using the controls or the graphic.
The stereo room mic is simpler and includes mute, solo and phase flip, plus width control, pan and level.