[Wayne A. Pflughaupt]

Great news there on your progress, Conrad, and happy to see the much improved results! Extension towards 25 Hz is much improved.

The best I could get was with sub1 where it was and sub2 now sitting in the corner next to it.

Actually, SVS’ Ed Mullen (who is also a fellow Shackster) has previously noted that a sub a few feet from a corner achieves the same coupling you’d get with it being in the corner (as for as output and extension goes) and that a second sub in the nearby corner can get smoother response than you’d get from putting them both in the corner. Naturally, every room is different, but once again it’s shown that Ed knows his stuff.

Yeah, and what’s up with that 150 Hz thing? Isn’t your crossover working?

I agree that you’re probably applying too many filters, and possibly cutting everything too much as well. I suggest raising your target level a few more dB; that’ll help the latter. Your proposed equalized curve looks too “perfect,” which you only get by equalizing out ever little nook and cranny. (That's one reason why I don't especially like our standard 45-105 dB window - it compels people to over-equalize.) As improved as your response is now, it shouldn’t take more than a few filters. It doesn’t have to look perfect to sound great. For instance, this is my in-room curve. Looks a bit ragged, as you can see, but sounds great.

I was kind of hoping someone would come back and say that I could EQ the subs by just dropping their volume, no real need for a BFD. What are your thoughts on that?

Mine are, you won’t get that house curve without the equalizer.

Regards,
Wayne