I cross at 75 hz in my current room, because that's as low as I can go and make it work. I have gotten below 70hz in a previous room, but never down to 60hz.
My point is that full range speakers in free space start to exhibit really difficult behavior somewhere not too, too far below 100hz in most rooms. Wherever that point is, that's where I feel that you're best off crossing to subs (if you're using subs), because the subs will almost certainly allow better behavior.
Whether that makes your system a sat/sub or not isn't really that important to me. Not to me, anyway, tho others might be more concerned.
Marty
BTW, Have you ever crossed your Verity Parsifal mains straight to the JL subs without the Verity bass cabs? I also have P/Es and tried it once with my Rythmik subs. I know that it's odd (and might not be appropriate for a long term configuration), but it was both interesting and educational, (and reasonably easy with the SMS), if nothing else. I'd be curious to see how it flew with your JLs.
My point is that full range speakers in free space start to exhibit really difficult behavior somewhere not too, too far below 100hz in most rooms. Wherever that point is, that's where I feel that you're best off crossing to subs (if you're using subs), because the subs will almost certainly allow better behavior.
Whether that makes your system a sat/sub or not isn't really that important to me. Not to me, anyway, tho others might be more concerned.
Marty
BTW, Have you ever crossed your Verity Parsifal mains straight to the JL subs without the Verity bass cabs? I also have P/Es and tried it once with my Rythmik subs. I know that it's odd (and might not be appropriate for a long term configuration), but it was both interesting and educational, (and reasonably easy with the SMS), if nothing else. I'd be curious to see how it flew with your JLs.