Two subs in a small room....

I was going to write a long reply, but see that Martykl has already written more or less what I would have said. So I'll tick an agreement with him, and summarize in different words:

Multiple subs placed using a moderate amount \of trial and error will nearly always provide a smoother, less erratic bass than would a single one. The biggest problem with a small room or a large room isn't its size but just that it is a box with incredibly irregular low frequency response from all the multiple standing waves. Multiple subs let you choose placements that compensate some of the unavoidable holes and peaks that any of the subs singly will give you.

Ok, so, if in a small room, a single subwoofer will suffice, what kind of small sub would be best? Ported? Sealed? Down-firing? And is there any sub that anyone could suggest?

In a small room, a sealed sub will likely be easier to integtate. SVS makes a nice 12" sealed sub that has lots of flexibility at a decent price.

If you want really deep bass from your subs, JL makes a great product, albeit at a premium price. SVS appears (from test results, not listening experience) to be a great value; a bigger, less attractive cabinet with very nearly the same performance as JL at a real discount.

From my own experience, Rythmik (in my system) might trade away a little bit of performance below 35hz, but works very, very well for music only systems, where full, clean output at these frequencies is rarely an issue.

If you're music only, I'd also think about the $300 NHT "lifestyle" woofer I mentioned. I have not heard them, but NHT usually makes a great product and I suspect that a pair of these small cabinet woofers might work well for music in a small room. Each unit combines 2 10" metal drivers and a 200w amp in a cabinet 6" deep. The primary quarter wave cancellation should be pretty benign when the front of the driver is that close to the wall. Even though you won't get true "sub- bass", this could be a really cost effective music solution in a room like yours.

Money back policy from Audio Advisor minimizes risk.

Good Luck

Marty

The first thing you need before two subs IMO would be to adjust the square dimentions of your room. Place as much of your furnishings along opposite walls. This will make the ten foot dimention slightly smaller and open a door even if its to a closet along an adjacent walls to make that dimention slghtly longer. As one other has said before, twist your listening triangle so your head has no common distance to a room boundry. And may powdered sugar fall gently upon your ears.