The long absence, I come back, and there are 5 pages added to the thread already, wow. Not rereading a single word that I typed before here, I wish you followed my recommendation on Seymour, LCOS Projector, identical 3 speakers on the same plane vertically arrayed, or maybe I'm misremembering. I also realize prices are tougher up there. You can try contacting by phone* the AVS store, and particularly ask about any ongoing b-stock or open box deals with JVC. This is a movie theater, and the display is the crown jewel, it's just how it is. You would have gained greater reliability, virtually no fear of dust blobs, class leading black levels without even needing dynamic iris, the highest possible fill ratio, even greater brightness post-calibration with most models, class leading contrast. You could have bought Seymour fabric, if willing to build the frame, for considerably less than the brand you chose.
At a glance, I like P Dawg's advice throughout here. The JTR rec was a good one IMO for what your desires seem to be, and you could probably get extremely loud w/o an outboard amp, with your present choice of speakers, I don't know that they could get there and what they need, I'm just very unfamiliar. Anyway, I understand impatience, I have family members that are much worse than you are for example and I love them all the same, but as for me, shoot I probably did more research on a $600 receiver than you might have done on a 15K theater.
So much talk about subs. Hey, they're cool. I get it. Mine is 5' long and is 280lbs, those are not typos, and I drive it with the Crown amp that was mentioned, but again I like P Dawg's advice, and most especially if at also happens to be the most economical. You would be better off upgrading the display while "settling" for the SVS. My main trepidation with the LMS subs is the power that those things want; efficiency is your friend right now IMO. My sub was only 1K, and it once in a while rattles the drinks so hard in the cupholders, that I sometimes get irritated by it. I like the advice to stay away from outboard pro amp in YOUR case. The EQ is nice even with Audyssey, because I can do the heavy paint strokes pre Audyssey, then use it once again for personal taste post-Audyssey (but let's face it, 3x EQing is PITA). But the amp takes 5 million years to fire up (I believe the computer portion fires up well after the amp section), the display is so freaking bright, that colored electrical tape is still not enough, it must be black tape, there is no dimmer option. The blue power light is 10x worse than the display! On the back wall, it lit up a huge blue rectangle on the screen. That is also covered with black electrical tape. You would need to run XLR-to RCA. I like that it has Speakon connectors. You would need to make sure that "gain staging" is all good within the system too. P Dawg is right, KISS right now. The choice of efficient subs and efficient speakers like JTR means you don't need to worry about so many circuits either (I just run one for the whole rig btw, no problem).
Outside of the impact of the room, which is the #1 concern, as for equipment bought, it is the display that is by far the #1 priority in a dedicated HT. Speakers / subs next.
(to GO-NAD!, yes your situation is fine, I did use the word "directly" for a reason. If you want to see a worst case scenario, check out basspig's thread, lol.)
