This is kind of a continuation from my recent post in the Martysub thread. There a pair of Martysubs (SI HT18D4) was the plan, powered by an inuke 3000DSP. However, looking at my living room where these will go, I'm not so sure it's the best route due to placement limitations. I would have to place them lengthwise to either side of the TV, butted to the walls and am not so sure this would be optimal.
Here is a picture of the space. (with my two helpers)
Note the AV rack can move and the small table and air filter will go away.
And a dimensioned layout. Note the adjoining open spaces (sunroom, hallway and kitchen)
LivingRoomLayout2.pdf 24k .pdf file
So, my goal is for sub 20Hz extension and smoothing of room modes for home theater only. I like the ported models for the added efficiency. I've considered 24" dia x 6ft sonotubes, but cannot fit them and have low WAF.
My budget is about $1k for drivers, amp, dsp, wood, glue, finishing and miscellaneous hardware. I have access to some hand tools (skill saw, router, planer, etc..) so that shouldn't affect the budget.
Other items I've looked at (mostly by reading threads here)
SI HT18D4 <- seems the best bang for buck driver out there for HT use
inuke 3000 <- Again, kw/$ ratio is good, DSP option while sufficient, is a little limited. Will probably go amp only and minidsp
minidsp <- I like this and am not worried about interconnects. I have a background in industrial controls and can do the interconnects
minidisp umik-1 <- Have it for before and after as well as eq-ing work
REW <- still need to download and learn
My bookshelves are highpassed at 80Hz and the bass management is engaged.
Having said all of that, I'm looking for some ideas and to sort out a direction on improving the movie audio experience.
Maybe 2 18" LLTs are overkill and I should be looking at 15" sealed?
Maybe I should look at downfiring to remove any directionality from the output?
Maybe putting both subs on the TV wall isn't optimal?
In the end, this thread will include my build pics and I'll pull together a summary of the rationale that comes out of the discussion.
Thanks in advance!