(dons Helmet, kevlar vest and cup.) Biwiring Cornwall IVs any benefit?

I have two SVS self powered subs that I connect via RCA to the preouts on my preamplifier. I wouldn’t get caught up in pinpointing a specific frequency but you could use 50-60 as a starting point. The main point for me was making sure the subs blended with my speakers. You don’t want to hear the subs, you will find a sweet spot. Play some music at different volume levels and mess with the level and frequency knobs until you’re happy with the sound. If I recall you can adjust phase also. I’m not familiar with your subs but just play around with them. I don’t think there’s a set rule you have to abide by as far as frequency goes. Just set it where you think it sounds good for you. I do have both subs set the same once I get it to my liking. This is what works for me in my room with my setup. Good luck! 

Excellent, thanks!

....remember to take a good long stare at the existing Xover circuit if you don’t know what design it is....the simpler it is or isn’t, the more complicated your life can get...;)  or not....

But this does give you an excuse to ’play about’.....perhaps, a lot more than you’d expect (points, slopes, overlaps....all that...)

Have fun, and Happy New Year.....

Thanks Happy New Year to you too

Bi-wire is a maybe at best, but getting jumpers and getting that piece of cheap steal out of the circuit can make a huge difference! I have tried bi-wiring my KEF’s a couple of times and the best I can say is maybe I heard a difference. I bought a decent pair of jumpers and they made an immediate difference in the brightness and Dynamic presentation.

YRMV.