Not petty at all regarding my misnaming the Thiel eq. Part of my pair's provenance, as related to me by the fellow member whom I bought them from, is the possibility that Jim himself handled the eq when it was sent back for a very minor service. The route you suggested just doesn't work - we went over everything and decided I'd give it back for a full refund and I'd get the amp instead.
So so far as "old iron" goes...does a Conrad Johnson MF200 qualify? I had this going as well through my ARC LS 3 ss preamplifier - noice, indeed!
Even though Jim eschewed the class d category I'm still forging ahead with the Primare amp, which will undoubtedly have me looking for a nice tube preamplifier - a set up I'd used before with the 3.5's. That was a Pass Labs X150.5 with an ARC LS 2 pre - perhaps the best I had. C'est la vie ... But the Thiels remain.