I have 4 RRA NMs and 2 are really mushy right out of the box and 1 is OK. The last one is spectacular. I'd get something else. I put a Del Ton 2 stage in my buddy's 6.8 when I built it and it is excellent. Thinking about getting a couple for my 2 large frames. If not I'm ordering MBT.

Talking to you is like trying to nail jello to the wall.