Thiel Owners

My ceiling is 10’ high. 
All speakers are working. As for the battery test I’m a little unclear as to your directions

i could reverse one speaker connections to see if the bass improves, but assuming for the moment the highs are wired correctly and the bass was wired backwards my highs will end up out of phase, correct?

i would need to flip the bass driver wiring I suppose. 

Nice room dimensions.
Don't switch anything until you know if there is a polarity problem.Disconnect the cables at the power amp. Connect 6V battery - minus to black wire and touch + plus to red wire. The coax and woofer should both move out. Repeat on other speaker.

Your symptoms could be created by 1 woofer being polarity reversed.

last_lemming
Nice! system. Interesting combination of Cardas/PAD cabling. Agree with Tom's assessment and suggested testing polarity. Does the B.A.T. pre-amp reverse polarity? The CS 2.4 loudspeaker is balanced Bass to Treble, Treble to Bass without any mid-bass fall out.  Hope the culprit is diagnosed soon. Good to see you again.

Happy Listening!

tomthiel
Hope you are well and recovering from your recent trip visiting Rob in KY.Tough time of year for traveling safely.  Good to see you as always.
Happy Listening!

JA - recovery was immediate, since re-entry does not say no. I wish I had more time with Rob, but our schedules only overlapped by a couple of hours. We're on firm ground with mutual goals. The trip also included other contacts and prospects. Getting away is good for perspective. Happy Holidays.