Two subs in a small room....

BTW, as to placement:

The whole idea of 2 subs is to have each sub excite the room differently. This usually (not always) means asymmetrical or "random" placement. One key is to keep the subs close to the nearest wall (or walls, corners sometimes work well)so that there is less cancellation of the original bass wave from the sub with the reflection of that wave off the walls. These cancellations - and accompanying reinforcements - cause significant irregularity in bass response below 150-200hz from most speakers. Unless your room is large enough - speakers >15ft from the nearest wall - to behave like an anechoic chamber, you are unlikely to get the smooth response you see in that speaker's anechoic FR test. This is no reflection on the speaker, just an illustration that deep bass should be generated near the walls in "normal" listening rooms.

With due rerspect to Vandermeulen, with the exception of digital room corrected speakers, I have never seen accurate (as measured) bass response from a freestanding speaker that can approach that from a correctly implemented subwoofer systems.

And note: I have measured the bass response of my systems for years.

Marty

My desire is for a smoother, richer sound as opposed to "more" bottom, if that makes sense. I have one sub already and my bottom end is fine but keep hearing that two subs would give a better audio presentation. I've been thinking that the room I have my system in may be two small for two subs but maybe two "small" subs may do the trick.

I don't think you could localize any frequency below 110hz, based on the length of your room. Also, are recordings stereo below a certain frequency? I don't think they are, below about 80hz,

Magfan CDs might be but I remember that LPs were recorded mono below about 100Hz.

As for smoothness and richness it is better to get one good sub like JL Audio Fathom 113 that can auto correct for room and whole system response with microphone placed in listening position - instead of two average ones. Studies made with multiple subs usually are oriented toward theater environment to flatten peaks and valleys in whole room.