Yes, that will work. However, the ICM1900 and ICM2900s have nice little features to them. One of them is the ability to switch the enable signal by changing a HEX driver chip. Some amps do low enable and some amps do high enable. And some ICMs have opto isolation built in and a convenient way to supply logic power (5v or 12v) or an open collector to do 24v logic. Basically, you will have to know a lot more about wiring things up to use this breakout board.
Steve