So, over the past two weeks I've looked into Marty's, IBs, passive radiators, and lately the multiple 12 options popularized by the $29 JBL thread. In all, I think I am now leaning toward the multiple 12 option for my application, but I need thoughts and confirmation of a few things (it's been a LOT of information!).
I've attached the blueprints for our theater room. Currently, the screen is on the west wall and the SVS PB2-ISD (dual 12s, 600W RMS, 5.4 cu ft enclousure, I believe) I was using before the amp died was on the north wall between the window and the 2'-10"x3' chase knockout. My calculations show the room is ~3300 cu ft.
Here are my questions:
1) I'm leaning toward the multiple 12s due to the ability to smooth response around the room. I could do this with Marty's, but 4 Marty's are just too aesthetically displeasing for this room, which knocks me back to 2. So, my questions here are is 8 12s enough for this room (4 enclosures, 1 in each corner)? Am I correct that I should get better response with this setup?
2) Am I correct that with EQ, I can get the multiple 12s down in the high teens with good output? I don't really care about single digits.
3) Will the multiple 12s provide better impact in the chest punch, mid bass region 60 Hz to 100 Hz over 2 Marty's?
4) Is there benefit to going with 10 12s, having 2 in a nearfield application behind the back row of seats, or is this creating too much complication on the power/wiring side?
5) I'm confused on something with the multiple 12s. I have read several times of people crossing them over around 35 Hz to 40 Hz. Are they talking about the LFE channel from the AVR? If so, that seems awfully low and will cause me to miss one of my requirements of good mid-bass/chest punch.
6) These enclosures from PE (https://www.parts-express.com/goldwo...binet--260-648
) seem pretty popular since, I believe, they are really two independent enclosures of ~ 1.5 cu ft. built into one box. Any downside to these vs building my own?
Thanks for the help. I'm sure some of these questions have been answered in the thousands of pages on the subject, so I appreciate you knowledgeable folks being able to summarize and save me from another 3 months of reading