is it worth the extra dollars to spring for the Deqx?As we're talking of a +10x price differential over the Behringer, that's a tough question to answer...
The Deqx does sound better in all respects; however, I listened to a unit that's not mine, so I couldn't open it up & sneek preview its belly:). I remember the s/ware is more complicated than the standard 2496 one, too.
Also, I heard it in a system using Lowther EX4, Supravox 400 bass & a professional Murata supertweet -- i.e. $~8k worth for the drivers alone -- so the deqx's cost wasn't overwhelming by comparison.
I can tell you what I did: nothing. I didn't buy one. Suppose I'm dreaming that the price for good (sounding) dsp's will become more reasonable, while the spkr system I'll be using one in (i.e. mine) will grow up to become equivalent to this friend's system:).
Cheers