All I can think of right now is do the sub crawl with your sub in the listening position. I have my system in the basement, concrete everywhere, so lack of bass was an issue for me as well. Now I'm running with EP500 AND another 10" sub up front. With both subs going and my main tower speakers to LARGE, and having done the sub crawl to determine the best bass sound in the room, I finaly have the amount of bass I want.
It seems the concrete could be an issue for me as well. I do have all walls insulated and a proper subfloor, but maybe that is not enough. Now I wish I didn't sell my smaller Velodyne, at least to test. I have done the sub crawl with the sub in my listening position twice, same result both times.
Have you done any frequency sweeps to see if you are really lacking @ certain frequencies.
I don't know how, to be honest. I looked into this REW thing but I have no idea where to even begin. I know nothing at all about computers and sound cards. It certainly sounds like I am lacking in the 50 - 80 range though. I have my crossover on the W22's set at 80, which is where Audyssey set it. The very first time I ran Audyssey (sub in a different position) it set them at 60hz. Maybe I should lower it back to 60?
The problem is that the punch in your chest is not from your sub, it is usually from the mains and as you have M22's it won't happen. The chest thing is said to be around 60 -90hz and the sub is busy playing ALL low frequncies and smoothly. If you want to feel it in your chest you need to try to optimize the frequency response for around 60-80hz. I have seen this question many times, check out MikeC on AVS, he bought MANY subs looking for that chest thump only to find out he was searching in the wrong frequency range. You could possibly benefit from Hsu and their
Mid Bass Module(MBM) System. . This was one reason I went to M80's, with them I get more impact than I did with M22's/sub.
Thank you, I think this just has to be the problem, there really is no other explanation. I will look into this.
What's the height of the room? You said it is 12' wide by 19' long.
With those two anyway, I can tell you that you'll have the biggest problems at 93 Hz because of the width, and 60 Hz from the length.
It's 8' ceilings, but with a bulkhead on one side which makes it about 7' which takes up about 14" of ceiling space.
The graphs of the PB12-NSD has a bit of a boost in the 50-60hz range, (I had one briefly but didn't like the thump it had) but your room could be killing that frequency and Chris has nicely pointed out it looks to be the case.
Is there any way to correct this? I assume not. Is it possible a different sub would change anything? I guess this mid bass module would solve it, it's just a major pain to ship stuff back to the US if it doesn't help.
Again guys, thank you for the help.
