[audio newbie]

Ive used the NHT's sealed and ported.

I used 2 10's in sealed boxes that were approx 1.5 cu ft each. I'm now using 8 10's in a vented box that is 25 cu ft.

According to WINISD the ported configuration gives 13db more at 20hz, 6db more at 30hz, 3db at 40hz.
According to another program the ported is up 6db at 20hz, 3db at 30hz.

I cant make a fair comparison on sound quality because the sealed boxes were not used in the same room location as the vented.

If I have time, I will try to hook up my sealed 10's and run a REW on them (the vented box has already been measured). I can also do a back to back listening comparison at that time.