Thiel Owners

utrak
Welcome! Good to see you here. Sit tight until one of our 3.5/3.6 experts chime in to address your query. Or, if you would like to gain a head start, feel free to reach out and touch Mr. Rob Gillum with Coherent Source Service (859.544.9790) for a consultation.  I look forward in reading more about your musical tastes and system.
Happy Listening!

Thanks jafant. 

 This 30 year old Thiel CS3.0 vs LS50 is an experiment for me to try to understand how good the older Thiels are compared to newer highly regarded designs like the LS50. I was also trying to determine what I could get away with in my smaller room with respect to bass. I don’t want to jump the gun because I haven’t spent enough time comparing the two but let’s just say that I’m shocked by how good the 30 year old Thiels are. There’s a good chance I’ll look for another set of used Thiels if I can’t fix the CS3.0s. BTW, the CS3s sound really good with tubes and so did the 3.6s.

Take a close look at your mid-range drivers. Seeing any cracks near the surround edge? The replacement mid-range driver currently under testing for the 3.5 may also work for the 3.0

Switching the crossovers will tell you if it's a crossover or driver problem.

utrak
My pleasure. I would think that a 30-year old pair of loudspeakers is going to require some kind of repair/servicing? If possible, closely inspect the cross-over network and drivers. Keep us posted with any findings.
Happy Listening!