Thiel Owners

And regarding your replacement midrange drivers. Rob's replacement is a CS2.2 mid replacement and it will work. And none have failed in the field. However, be aware that its power handling spec is far less than the 3.5 mid. High power levels will damage it.

The good things about that driver include its physical drop-in aspect and its suitable performance. At moderate levels it will sound good.

@thoft’s suggestion has merit.

At low volume levels in a small room one can get away with 100 Watts @ 4 Ohms, but one should keep in mind that even with an accommodating impedance rise in the range at which the equalizer does it’s thing, the eq still adds extra demands on the amplification. Personally. I would at least double that previously suggested 100 Watt @ 4 Ohms minimum for my own use.

I did a new upgrade for my Qobuz and Tidal streaming.I took my fanless Intel NUC from my headphone rig and installed Roon Rock on it and added an Sbooster MKll power supply to power the NUC and some audiophile grade ethernet cables.The result is absolutely phenomenal, before i used to run Roon from my desktop PC and the sound was not so great.This streaming upgrade is not very costly and will make you very happy.

tomthiel

Thank You for the follow up to woodysticks' query. Very interesting about the correlation between a 3.5 vs. 2.2 mid-driver.

Happy Listening!

JA - the upper crosspoint is the same 3kHz with very similar tweeter low rolloffs. The principal problem comes from the lower crosspoints: CS2.2 @ 800Hz, and the CS3.5 a full octive lower at 400Hz. The driver is asked to move a lot more air with longer excursions at lower frequencies. But, as I said, there have been no failures and it works well until we get an optimized solution.