I still own a pair and use them in my home theatre as the front channels. I agree with Vernneal's suggestion to just supplement the low end with a sub. The midrange unit on the 3.5 goes quite low, and with it's first order crossover point, it can receive excessive bass especially with the eq in the circuit and set to 20hz. I blew a midrange unit years ago when the eq was in the circuit. Theil replaced the unit at no cost (thank you Theil). Since then, I use them without the eq and have not had a problem since. FYI, I also feel that the eq effects the sound in the mid/highs imparting a slight transistory flavor to the sound.
Thiel 3.5 equalizer advice
I am using Thiel 3.5 speakers without the equalizer. Does anyone have any insights (or firsthand experience) on the overall difference in sound that results if I bought and added one to my system. Does it just impact bass response or will it impact other sound qualities? Does Thiel still make the equalizers? Thanks for any insights.