I looked at the NHTs before I bought Outlaws M200. The special pricing for 3 and Outlaw's return policy made it easy to do a test drive. I would call Outlaw and ask about the G vs A/B-G class rating. They will give you an answer.

My Axiom M80tis are 4 ohm and the 200s do a great job at low and high volume. I like the monos because I know I am getting the rated current as opposed to sharing a power supply.