I had been tracking ART a while back but not lately. There were some teething issues in the beginning from what I remember and since my processor wouldn’t be supporting it, I pursued other ways to improve bass and overall sound.Well, there is nothing out there comparable to ART really. Two biggest benefits are reduced decay and ability to fill in the dips in FQ response by having a different speaker play that particular segment. So it is not necessarily that 15dB dip can't be corrected any more, or the rest of the spectrum needs to be pulled much lower. This also adds additional clarity to the above 150hz range.
Take a look at the ART thread. Lots of people with multiple subs are quite happy and thought benefit was meaningful compared to Bass Control. In your case this means additional investment that is not insignificant, so best to research thoroughly. Also, ART does not support sub 20hz bass, but will pass it through without EQ. That transition might cause some dips or bumps, or for the lucky ones will go pretty smooth.
As far as blending mains and subs, ART does not work on crossover concept, so blending is really completely seamless in a good setup. This is how it looks in mine - measured 7 out of 9 bed channels and orange is average.
View attachment 501304
ART looks pretty complex and very advanced. Pretty impressive stuff! I’m guessing that my best option would probably get something like the AV10 but a cheaper version when my XMC2 craps out.
but still great). Can bang 105dB at 30hz, but distortion will go up significantly. 4 subs won't break a sweat at 105dB at 30hz and stay below 2-3% distortion. They are only at 50-60% of their gain, and then +12dB from ART gets them to 3/4 at max.