After reading: Minimal EQ, Target Levels, and a Hard-Knee House Curve by Wayne I decided to give it a try.
I must say I'm having a very hard time getting anything resembling the hard-knee or house curve actually.
Here are the results: (All results are before any room EQ from my pioneer reciever)
System:
Pioneer AX2 reciever
SVS PB12+ sub
Behringer 1124 DSP.
Mains:
Subwoofer
no EQ 80 hz crossover:
Subwoofer with 3 EQ filters 80 hz crossover:
System response
3 EQ filters 80 hz crossover:
System response
7 EQ filters 80 hz crossover:
So, how does it sound? Well, little difference to my ears, but the sub seems a bit more out of control in certain scenes in movies. Works very well for music still, which I thought would suffer more from fewer filters. I was using 12 filters earlier!
The difference between the 3 eq filters and 7 eq filters are small.
I was surprised how well I could get the response using only 3 filters! Basicly just used one a 20hz, a 3db boost at 30 hz and a major -17db at 36 hz.
Using 3 or 12 filters I'm unable to get rid of the dip at 30hz...using 7 filters I can narrow the dip a little and even out the response slightly.
Button line here, can I do better? Should I tweak more? Having a hard time getting it any better than it is now unless I push it to 12 filters with very narrow and hard corrections.