Most subs in theaters are either 15" or 18" PA subwoofers. Probably JBL. Most theaters here in Minnesota have pretty crappy bass extention. My home sub sounds better and deeper.
THe shiva has an xmax of 15.8mm, good but there are better drivers out there. The MKII Titanic from parts express seems to be pretty good with an xmax of 17mm.
Just imagine if the xmax was 15mm, that would mean moving 740 cubic inches:b However, i doubt its anything close to that, the cone would start to flex really bad since its so damn big.
Thats alot of woofers. But how much air they move is important. The earthquake will move probably the same air all your woofers on your speakers move together. An passive radiators do count. At sub frequences they move about the same as the woofer.
Where can you get a custom Good looking ROCK SLAB that weights 20-30 lbs? And how much do you think it will cost. My sub weights 74 LBS, its no light weight, but the high excursion drivers shake it pretty good. Any thing i put on top of it slides right off.
I got an Earthquake MKIII and the sucker physically shakes on my carpet when hitting deep bass. I hear shaking is not a good thing and means loss of DBs. So what can i do to stop this shaking.
I think it should sound pretty good if you used your closet as the box. Heck even a small room. Its not only a DB dragger, but goes really low. I can get one used for $500
Has anyone out there used a this clarion monster in HOME? I hear it goes super deep and is recommended to crossover at 35 hz or lower.
I could bet it could out play a Dual SVS ULTRA.
You may not need any more bracing, but I think adding some fiberglass to the walls could possibly help. They say polyfill is not need for ported boxes, only sealed.
Infinity Entra or the IL10 - I own four pairs of the Entra speakers and they are decent. Quality is nothing to brag about, but they do sound pretty nice and have good bass and nice highs for a bookshelf.
You would have to make a subwoofer pretty darn air tight so you don't loose the pressure through the years. Obviously Carver has some things up his sleeve. If an 8" cube could have the same output of the MKII 11" then I can't imagine how much more powerful he could make the Signature model with...