I've been using my Lsi9's with a SVS PB 12-NSD. At the advice of SVS tech support, I run the signal from my preamp to the subwoofer's crossovers then back to my amp for my monitors. To my ears, it does a pretty good job.
My question is if I want to try dual subs, should I purchase a second PB 12NSD or should look at two other brands of dual subs?
your 2 cents will be appreciated .