Speaker Cables for Thiel 2.4

My experience tells me that 'usually'systems sound better when 'all' cables and interconnects are the same brand.
I would stick with a Kimber Select.
In fact, I lived with an all Kimber Select system for quite some time, and liked it.
IF you elect to go with one brand for all and want to change, the Acoustic Zen is good with the THIEL Audio products.
In the more pricey category, Silversmith is very natural sounding 'to me', though a little pricey they offer excellent cables and interconnects.
Used their product with a mega buck system to great success in Vegas a few years ago--plus Jeff is really good to work with.
Best,

Alpha-core, Straightwire and Wireworld might work nicely.

Cardas is a perennial favorite with Thiel. I had good success with Audience AU24 on my 2.4's, but also with Speltz Anti-Cable and, at the opposite end of the price spectrum, Nordost Valhalla.

I've had great sounds over the years with Cardas Neutral reference speaker cables on my Thiel 2.3s. I also use Cardas Golden Reference ICs. I found the Cross to be a bit more rolled off, "tubey" if you will, than the Golden Reference ICs. The same for the speaker cables.

I own 2.4s and Alpha core or ridge St audio works better than Kimber 3033, audience 24 in my sys.