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Just completed my first build. I attempted to load pictures but the first time they were enormus and then the second time you can barely see them so I give up with that.

I have a birch wood box externally meauring 18 x 20 x 52 with a slot port tuned to about 18hz. I have installed the Tempest-X2 15" powered by a PE 500w plate amp with about 20% poly-fill. I am getting a tremendous amount of low-end rumble but it tends to taper off quickly once it goes up past 30hz or so (kinda of guessing here). I have the amp configured as followed:
  • LFE direct input
  • low pass gain-approx 1/3
  • low pass freq-200hz
  • phase-0
  • eq freq-18hz
  • eq bandwidth-.5
  • eq level- -5 db

I ran Audyssey ( multeq-xt )from my Denon 4310 and set the crossover at 80hz and speakers set to small. Audyssey set the sub at +3db and then I bumped it up to +7 db.

So far this sub has more output down low than the MFW-15 it's replacing but doesn't come close after that. Any pointers in the right direction would be appreciated.

Looking forward to seeing what you come up with. I am getting ready to build this exact same setup (tempest x2, PE 500W) and I have a denon 2310.

Hope you figure it out and post some pics of the build.
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