Thiel Owners

thielrules, troubleshooting is a hands-on undertaking. I'll speculate a little, but the problem needs actual triage, both speakers and the eq.
The deep bass looks like the green channel has the eq and the red channel does not: textbook 12dB/octave rolloff. The red channel from 80 to 300 might be a woofer problem or the bottom end of the midrange phase-lagging causing that periodic (cancellation?) pattern. Of special interest is the combined blue output from 250 to 1K is lower than either speaker. This graph implies phase / polarity issues in the red speaker or the eq.

I suggest you take out the eq, change cables, measure each speaker in the identical room location, swap amp channels, etc. to gather meaningful troubleshooting data.

Perhaps you can arrange an appointment with Rob to send him your preliminary data beforehand and take your speakers when he's ready to put them on the bench.

dspr, my recollection (unreliable) is that there were no electrolytic caps in the CS5. Film caps are stable or get better with age. I'll keep an eye and ear out to confirm my suspicion. Does anybody know?

Tom, your response is greatly appreciated. I have an extra woofer but it sounds like there may be more wrong. The equalizer was just serviced a few months ago and that was what started me to examine this more closely. Thanks

I have been away and didn't keep up with thread, Wow lots of cool conversations! and the analogy of talking about your kids!! HA so true,  loved all the albums everyone shared and really rekindled some music,  ! The Doors and the Sound track to Blade runner... oboy what a treat for the Thiels!  I also laughed my ass off counting how many Gibson models were in attendance but then cried when I saw what Corvett01 sold his for.  Prof had me flashing back to my youth and the days of the Hustle with the Saturday Night Fever. These box's we all share are Thiel Time Machines! For the record I wasn't 100% disco. I remember seeing the Who in Shea Stadium (loudest concert on record) and the Palladium and Studio 54 that same night!  Sorry for rambling.

  Mr Tom Thiel question will this amp work with 2ch/home Theater? CS2.7 as main Msc1 center cs 1.7 rear   https://classeaudio.com/ca-5300/   I have left them a few messages asking for 4 ohm 2 etc...  Thought Tom or someone here might know some history. I was going to run all 9 speakers with PS audio M700 but now just the 4 atmos power plain 1.2  Thank you all for the album sharing again.  Dan
                

Good to have you back in the fold of things - dancastagna
I wonder as well how many are using a newer or more recent, 2000 and forward, Classe' power amp?  The 90's models seem to be coveted.
I guess we all can query about an older, 1999 and backward, Krell or Mark Levinson?
Happy Listening!