Originally Posted by tgaffner1
I just get me a MIC2200, and I should be getting my other Ti on wednesday.
So far I'm planning on building 2 sealed enclosures, probably 20" cube. Hopefully the combination of EQ, a line driver, and a second sub will make me happy as a clam. Well find out on sunday.
What were you thinking? What were your two design specs?
I'm thinking that the efficiency your sub is very low. When others mention EQ for a sealed sub they should have mentioned a LT device like a BASSIS. And for a device to EQ your response flat you will need MASSIVE amplifier power to back it up or you will significantly limit your dynamic range. You should realize that without more amplifier the sub cannot be louder - unless you have a more efficient enclosure. So I offer the two options. Both will need the MIC2200 to preform at their best.
If you expect the additional 6dB gain from the second woofer to fulfill your SPL requirement then I would suggest the "Blue pill"
This is a slot ported box that can be built from 2 sheets of MDF. The dimensions are 26.5" x 24" x 37.5" hwd. The only adjustment you would need to make would be to cut the driver opening to fit your 15" as this was drawn for an 18". The plans are here: LINK
I just noticed thee is a neat video at post 140
The"Red pill" is for if you were disgusted that your sealed sub is like 80dB 1w/1m efficient in a 2pi envrionment @30Hz. So I was offering something that would give you ~95dB @30Hz as an option. This would be a tapped horn of ~230l internal volume, not small, but alot louder. If you built 2 you'd have 20dB more above 30Hz than your single sealed box you have now.