Subwoofers with room correction built in?


Who has experience, good or bad or whatever, with the built-in room correction/DSP/EQ that newer subwoofers (except REL) come with these days?  I’m excited to try the system built into an ELAC sub 3070 that’s coming my way soon, but I want to be realistic.
Thanks.
redwoodaudio
For less than $1k you can get the DSPeaker Anti-Mode 2.0 unit with built-in room correction and DSP equalization modes. Other units are out there but I'm not that familiar. These units can be used with your main speakers, in addition to your subwoofers, to take out certain problem frequencies. Some will go to their graves fighting DSP tooth and nail but I would not remove mine. The improvement to the sound of a good system is night and day, no kidding.
+1 @musicaddict Though I tend to buy from miniDSP.  Also, DSP works MUCH better if you have good room management.
I’ll echo the last two posts and add that even the cheap 8033 from Dspeaker, which is only meant for subwoofers, works well, particularly if you dial in the woofers as much as possible (placement, crossover, gain, phase, etc.). I run such a unit from an additional line out on my line stage to feed the Dspeaker, which controls a pair of Rhythmik 15 inch subs. Those subs are not crazy money and really blend well with my hybrid horn set up. Note that the 8033 sums the bass for two outputs so no stereo subs (unless you have two 8033s or buy the fancier Dspeaker unit mentioned above). I don’t really care about that because I’m mainly playing LPs most of which are summed bass anyway and I'm rolling off the subs at 55hz on a 24db/octave slope. Pretty cost effective way to get synergy with a horn/hybrid that does not sound like two systems playing at the same time. It is seamless.
It's good to know that there are external DSPs that can be had for reasonable prices, but right now I'm primarily interested in hearing from those who have had subs w/ the feature built in.  Anybody else care to share?
Well the just of it is, the ones I built work great and the plate amps your asking about are very close. It's worth your while. Along with room treatment, DSP is a great tool and pretty easy to use..

Mic position is the key if you ask me? Right where your head is going to be.

I'm not saying you'll like the way it sounds though.. Really some people just don't like the sound. It doesn't account for OUR ears sensitivity or the lack of it.

Better off with it, than without it. That's for sure.. I use the PEQ function for a 50 and 70 hz bump works great..

Enjoy