That's a tall order. $500 to hit low and fill a 23' x 26' x 8' room requires a fairly large sub. Would a 11 cu. ft. enclosure have a "high wife acceptance factor"?
Agreed. I'm willing to bet two 12 inch 315's in a 23' x 26' x 8' room wouldn't do it most people.Just some additional food for thought on how much output is "room filling" since everyone's taste is different.
Looks like you pulled your parms from the spec sheet and I used the Dumax results. Regardless, in the same alignment the models track within .5dB or less of each other. Remember, I added the HPA500's default rumble filter into the graph I posted, which brings up the 20Hz region a bit.There's quite a bit of difference between our Titanic models. Here's the file I'm using.
View attachment 14416
They'll do about as well as a single 15" and it's just submitted as another option to consider, especially given the sale pricing and the sound quality claims for the Reference Series. Dual 315HFs have about 22% more Sd than the Titanic15 (33% per Dumax) which will offset the Titanic's Xmax advantage to a degree. The T15 ends up with about 15% more one way displacement.Agreed. I'm willing to bet two 12 inch 315's in a 23' x 26' x 8' room wouldn't do it most people.
Indeed. It took a pair of ported 15" Atlases and a pair of ported 18" IXL's in a 15' by 26' room to achieve the "effortless bass" at the levels I like.As the hot rodders say, how fast can you afford to go?