Originally Posted by HopefulFred
Looks good to me.
Could you recap the advice and decision process that leads you to sealed subs?
"Decision Process" implies a cognitive series of events facilitating the application of knowledge,
My thoughts are typically like a ping pong match, so view my comments more as random thoughts in no particular order.
I should be clear that there were no specific recommendations "against" an IB, and based on my personnel experience I absolutely, undoubtedly, definitely, really, really loved my last one.. Really!! The visceral, tactile, chest hitting, and wind blowing your hair back (real or imagined) pressurizing effect of the IB was phenomenal. So how could I make the decision not to go with another IB setup?
I didn't necessarily come down to the performance merits of one approach over the other .I believe the same / equal performance can be had with either an IB or a sealed sub if you compare apples to apples or in this case displacement to displacement. With my last IB I really didn't have a baseline for comparison, it was the first time I had experienced 4-18" subs in the front of a sealed room. Was I overwhelmed by the IB or was it just the fact that there were 4-18" drivers pumping air at me. Can I get the same visceral and tactile impact from 4-18's in smaller boxes .. I hope so.. and this is where the people with more experience and knowledge have given assurances.
The sealed subs will require more $$ for equipment and an investment in the local power company to get the same effect, So the amount of displacement per $$ was solidly on the side of the DIY IB. The real trade off for me was space, most of us find ourselves fighting for every inch we can get in a room. I could have pushed everything back ~ 3 feet to fit the chamber, but that starts putting the second row too close to the back wall and also limiting the depth of the treatment space in the back.
I believe that the effects of the room response will rule over any difference between sealed system and an IB, and without the IB chamber i have a lot more depth for bass traps/low pass/ diffusion, whatever on the back wall which can be utilized to help tame the room. IE "more" flexibility to address response issues instead of limiting options down the road.
My last theater was a room in room, and the chamber and baffle wall were built like a fortress. Maybe unfounded but I have a nagging feeling about tying everything to clips and channel this time and what effect it may or may not have.
Lastly and maybe a moot point for many is the additional time, however limited it may be, that it would take to construct the chamber/manifolds etc vs writing a check for subs... I really don't want to spend ~3 years building this theater.
I purposely avoided the typical rhetoric of box coloration/effortless bass/ placement flexibility etc in my comments, because Im not convinced one is better than the other, Each has its advantages and disadvantages, so what is best for one may not be for someone else- for me it was a trade off $$$ vs time and space.
Originally Posted by TMcG
Nice plans. I like the stepped design you have going on for the walls and ceiling like KBlaw2010's and Dennis' Caribbean builds.
By the way...good luck staying cool this weekend. I heard it was going to be 117-119 degrees during the day and in the low 90s at night!!
They say that Imitation is the best form
I have a slight aversion to the "A" typical column to hide the speakers etc.. the stepped side walls will fit very well with the same type of panel approach I used in the last theater.. Due to the limited width of the room the steps will be close to the same size as below ~ 4" but i hope with the ceiling step down they will appear slightly more exaggerated.
Originally Posted by Moggie
Brad, small point but I'd consider swinging the entrance door the other way so that it opens towards the screen. That way folks can enter and walk to the rear seats easier.
Good Point Paul.. At least I didn't buy the door yet...
but I do have the Zero door seals I got from Ted that I never installed last time around.. hauled em 2000 miles, knowing that one day I'd use em
hope its not lame that I post pics of my old theater?... I didn't really post many finished pics and I found a few higher res ones left on the camera that I never posted before ......
I ended up going with control 4 system .. Probably do the same in this theater....
Pictures of "New" progress soon