I have a crate GX 212 120 Watt  combo with reverb. and am a little confused as to what kind of speakers to put into it. I would like to change them to get a warmer OD sound. I am an automotive tech, I know how to read wiring diagrams and such but this has still left me confused. I have the owners manual, and the manufacture wiring schematic and am still left confused about speaker wattage and ohm per speaker that I need to replace them with. For example do I or can I put two 60 Watt  4ohm 12" speakers as the amp is 120 watts or do I put two 120 watt 4ohm speakers in it? .  I would greatly appreciate any help or info on this. the wiring schematic shows me one speaker at 4 ohms 120 watts. I have two is the wattage split? or 120 each at 4 ohms.