Originally Posted by BeeMan458
Working with you, let's see what you posted earlier: "I don't like muddy or mushy/boomy bass...."
And then you post: "I really don't have room for two subs, fitting one is hard enough."
The reason I highlight these comments of yours is, with a single sub, you're setting yourself up for your stated disappointment.
I'd encourage you to get two 10" subs as opposed to one 15" sub so as to best prevent "muddy or mushy/boomy bass..."
In your OP you left this comment: "Cost is not the principal concern if one subwoofer is head and shoulders over the others...."
Working with you and this comment, you might find a solution in the pricey Martin Logan, Depth i.
Used you can find them on AudiogoN for about $1,300.00
and one of these should solve your need for sound quality, WAF and fit in your stated location; the best of all worlds.
Hope the above gives you some ideas.
I'm not trying to be dismissive of your comments. Clearly others have gotten good performance in their large rooms with smaller vented or even sealed subs. The SB13-ultra is intriguing because at least one of the early reviewers at audioholics commented that in his fairly large area the SB13-ultra performed similarly (or better) than his PC13-ultra... if I knew I could get similar performance from a single SB13-ultra to what I got from my old PC12-plus that I had to get rid of when I bought my current home then I would pull the trigger immediately.
The reason for my hesitation is that the current SB12-plus that I have is completely under-whelming in my area so I'm nervous about going with another sealed cabinet design.
You point out that I will be disappointed, that I should go with two subs (even though I've explained why this is not possible) and you recommend a sub like the ML Depth.i which is almost never, ever mentioned at AVS and I don't see it reviewed in any sub shootouts that compare the more well regarded subs from SVS, HSU, etc.
I know from previous subwoofer purchase experience that the best bang for the bucket is obtained by building my own sub (not going to do that) or going with an internet direct company as the subs that they sell will usually outperform "retail" class subs that cost 50% to 100% more.
So, basically what I am trying to find out is, will I get good, below reference level movie involvement from ANY of the smaller ported or sealed designs that will fit into the 20" x 20" x 20" space I have available for a new sub? Especially considering that I expect to get almost no room gain in the location I will be putting it?
Honestly based on the level of feedback I've gotten in this thread it is becoming apparent to me that I'm simply going to have to start purchasing subs and auditioning them, and dealing with the return shipping charges if they don't work out.