Didn't work well with my DP setup, should have gone with resonated? MF is like new - estimate shipping freight to be around $100? Nice sound, i think, with stock DP!
Noise "volume" not a problem, sounds fine, but combination of 3" USP DP produced some undesirable cabin "drone," no problem with 2 1/2" stock DP, and possibly other DPs like NeuSpeed? Currently sorting this out with a NeuSpeed CBE.