Originally Posted by normtim
That's an odd and unfortunate conclusion to come to; I've made a concerted effort to respond to nearly every post I've received...
You're responding to my posts but you don't realize, you're not responding to what I post:
I've appreciated your feedback thus far but if my reasons for preferring sealed are unsatisfying or my failure to embrace your repeated vented subwoofer suggestions are a point of angst then I can appreciate your choice to post no further.
No angst. You have a huge, cavernous room and in my opinion, based on what you've posted, you're setting yourself up for disappointment. A recommendation would be to re-read what you shared in your original post so as to understand your plight. Your answers will be found in your questions. I'm not trying to be cute or cryptic. You've openly stated the size of your room and what your sonic expectations are.
When questioning the need to pressurize my entire house I was very intrigued by sdurani's simlar observation.
On the hope that you haven't written me off altogether, I would be grateful for the elaborate version, particularly since you've hinted a couple of times at a neafield solution. Per sdurani's and my informal conclusion, isn't sitting 12 feet away from a pair of large subs "nearfield" enough?
I'm not writing you off so much as I'm not wanting to argue as, to me, you're showing an apparent locked mindset. I say apparent as I can be totally wrong. As to the leaking and averaging comment, think of a bicycle tire vs a sports car tire. Put the air of the bicycle tire into the sports car tire and the tire will qualify as being flat. If you do not place enough subwoofer output in a room, like the bicycle tire, the space in the sports car tire will appear to make the output of the bicycle tire, disappear.
Nearfield placement, is right next to or behind the listener as opposed to being placed thirteen feet away. You have a huge space. Sealed subs follow rules just as water rolling downhill follow rules. I did my best to articulate the problems with a room your size, sealed subwoofers and their limitations. I'm a sealed subwoofer kinda guy and on my next upgrade I'll budget according to what I know to be true and accurate for a sealed subwoofer system.
The room is 3,300^3 and opens to the kitchen and dining room via a hallway. For a sealed system, my opinion, at minimum, the room needs either one XS30 and two XS15s, three XS15s or a F25 and a E15. Those are minimums. Your room would suck our room up and not even count our room as a bedtime snack.
This is what you posted that I'm responding to:
Conservatively measured, my room is roughly 9'h x 17'w x 46'd (although my listening position is only about 13 feet away from the stereo on the long axis); this largely ignores the very open connectivity to a dining room and a 20' 2-story foyer opening up to an upstairs landing and hallway.
Anyway, I'm not obsessed with listening to content at "reference" levels, plumbing the absolute furthest single-digit depths or blowing out candles at 50 feet yet I also realize that I have a lot of room volume to pressurize and I do find that I prefer to listen with my subs around 4db hot. My prior subs spoiled me in that they were extremely tight, detailed and revealing but they were simply too anemic, unable to overcome the demands of my listening space. So with my conflicting demands of musicality trumping all else I quickly gravitated towards a pair of F15s but, combined with the very real threat of my voluminous area draining the life out of anything underpowered, that quickly escalated to the F15HP and then the F25 and thus lies the quandary...
After reading and researching so much these last few months I've witnessed a lot of intriguing and helpful insights from people on these forums.
I see a conflict of terms with your comments as you try to go for the most articulate subwoofer output yet place the subs in a room that will eat your output alive. My comments are intended to address the mechanics of your situation. As to inherent problems (budget, WAF, aesthetics, placement issues, et cetera), I can't address those issues as those are personal limitations I don't have the ability to address.
One has to make a choice regarding what is important to them and limit or unbridle their choices accordingly. Because of your inherent restrictions, my final recommendation is to give Rythmik and PSA a call so they can hopefully take the time to explain the up-and-down side of various choices. My willingness to bail is because there's no point in my continuing as in your own way, you're showing you've made you mind up on certain issues that are in conflict with your room's acoustics.
Think of subwoofers like you might a cat......subwoofers tell you what they "NEED" and don't care what you want. That sort of thing.
Hopefully my above gives more insight to my post.
-Edited by BeeMan458 - 10/27/13 at 7:55am