Originally Posted by jerrymb
I read a review on Amazon that said that the S30's put the Behringer 2031p to shame.
I looked that up, he was talking about the 2030p, not the 2031p. He also called the s30s tonally colored and the Behringers neutral. That's technically a flaw with respect to accuracy, however many people seem to enjoy that coloration. It sounds to me like the s30s may have a frequency response hump in the mids.
The FR for the 2031p above don't really match my experience of them, the rolloff is much too high. I'm guessing that info is for the 2030 as well. Here is a chart for the 2031p:
That reflects my experience with them, good bass down to 50 Hz. Also in my experience they are easier to listen to than the Primus, the Primus tweeter can be a bit fatiguing after awhile. The Primus are good though, no doubt. If you have a Fry's nearby, you can get them for a hell of a bargain when they go one sale, the p163s for 60 each, the p163s 50 each.
Without a subwoofer, get the Behringers. Be aware they are large and heavy though, so they can't be fairly compared to little speakers like the s30s. They have almost four times the woofer surface area of the Cambridge, they will be a hell of a lot more capable in that range.
Here is the only graph of the s30s I can find:
It looks to me that these speakers would have a forward character. That doesn't look awful, but the woofer's breakup definitely shows up in the FR. You would think breakup would be a problem with the 2031's massive woofer but it isn't.