Well folks, I drive my Thiel 2.4s with NAD 375BEE. Is it enough? Absolutely. Could it use more power? Who couldn't.
Its at the point where I'm close to being 'there' but not quite. Can I get 85% out of my 2.4s at this point? Absolutely. Can I hear room for improvement? Yes. Does this gap bother me or prevent me from some serious listening and enjoyment? Not at all.
So for a $1200 amp (or cheaper in places), I think its quite a marvel for the NAD 375BEE to handle the 2.4s as it does. My next amp/preamp will be at least $5-6k in total costs thus a huge price jump for 10-15% expected improvement in performance.
My two cents. If you are on a budget, I cannot rate higher the NAD 375BEE.
Steven986