Originally Posted by indebtbassfreak
Mike is one of the most respected people on this forum. He really takes the time to read and understand what he feels someone is looking for and is so incredibly well spoken in how he responds. I would take any advice he suggests seriously.
Now that been said
Once you hear a quality sub that can hit clean high SPL down low, it can become very addictive. If you can get the vision of the 4000 out of your mind set, and still want JTR, a pair of 2400's will be more than enough for 99% of the bassheads in that size room. As mentioned even two 1400's will be a huge upgrade, get you the tactical feel you want and save you $6K.
Originally Posted by Dynokween
Good info. Mike must be getting old!! haha. So hes having to turn down 4 subs which tells me having 2 of the 4000ULF-LPs near field should be just fine since its 50% of the subwoofage
Using and having the ability to use, are two different things
And for movies I would most likely use the extra headroom. For music and such I really doubt I would need any of the subs we are talking about. Heck, the only time I've ever let my Sub 2 eat was during movies while by myself as others in my household tend to not like reference level volumes.
PB16's are/were on the radar. My issues with these is the shape of them. I don't think placement would be easy with the length of them, for duals anyway.
Thank you very much for the compliment, Joe!
It's actually 6000^3 on concrete, and the PB13 is now a PB4000, just because.
But yes, age notwithstanding, having four subs this powerful is actually more than I need. But, all four of my subs would still not equal dual Cap 4000's. That's what I meant when I said that you really don't know how powerful ported subs can be. And, the Cap 4000 is the most powerful sub made. Believe me, it wasn't really intended for 1755^3 rooms.
I think that dual PB13's (or the newer PB4000's) would be a great choice for your room. The PB16's not so much. This is part of what I am having trouble conveying with words. The PB16's are about 4db more powerful than the PB13's (3db more than the PB4000's) below 35Hz. But, you won't need
more SPL below 35Hz than what the PB13's will give you. Two PB13's will produce several times the low-frequency SPL that you are getting now from your three sealed subs, and they will also produce much
more tactile response. And, the room gain that you get below 30Hz will magnify and intensify the low-frequencies even more. So, PB16's would be larger and more expensive than the PB13/PB4000's, but they wouldn't give you more of anything at all that you can actually use.
The same thing will be true for Cap 2400's, and even more so for Cap 4000's. The Cap 2400 is designed to be more powerful than the Cap 1400 below about 35Hz. They are about equal above 35Hz. In a very large room, like my 6000^3 room, where I don't get much room gain, and where I sit much further away from my subs, that extra low-frequency SPL would be a good thing. In your room, it would not be a good thing. It would be the opposite of good. And the Cap 4000's would just be overwhelming in a space that size for someone who doesn't really want insane SPL.
Finding the right subwoofers for the space, and for the listener, is sometimes a difficult process. In my opinion, dual PB13's or PB4000's (essentially the same sub with some embellishments), or dual Cap 1400's, would be a great starting point. My personal prediction is that any of those pairs would also be your stopping point from a performance standpoint. You could always choose to start with more, or to add more over time, but again I don't think you realize just how powerful a pair of good ported subs will be in your room.
FWIW, I would never
advise someone to buy less subwoofage than he may need. The entire Guide, linked in my signature, is predicated on the notion of having more subwoofage than we need in order to have ample undistorted headroom. And, my own system is consistent with that principle. But, I paid attention when you said that you weren't a huge SPL guy. The strong ported subs I have suggested above are going to give you all the headroom you ever need--even to hit Reference levels (0.0 MV) in your 1755^3 room.