I not only checked phase of speaker connections, but tried working the woofers in good over a few days. Still, the old 2c's had much more balanced and solid bass! The newer Sig's, while better in every other way, were simply wimpy in the bass! I had a hole in the response between 63hz and 100hz that was not subtle! I mean, it was down -across that band almost 11- 12db!!! THAT'S HUGE!!! And it had nothing whatsoever to do with speaker and chair placements, cause Lord knows I tried every possible location in the room!
I highly doubt working those speakers in any longer would have made up that gap! I've been dealing with speakers and audio in general for decades, and have never heard/seen that before!
In locations where the bass was balanced and dynamic with the older models, it was simply "almost, not there" with the Sig's!
I had the client in to not only listen but to look at the measurements, first hand.
The speakers he end up with had no such problems in that same room, set up almost where the old Vandie's were! - and these were brand new in the box also.
So, I dunno what the deal was