I agree with unsound, please be careful of vintage equipment that has not been updated or modified recently. bad caps are bad news.
However, I have found that OHM F or A are not nearly as fussy about amps as some would believe. I have used all manner of equipment to drive mine.
Our TLS-I and II series are quite amp friendly.
For your perusal and gentle comment I have uploaded a virtual system called "My Walsh Dream" located under the ever evolving section.
HHR Exotics Speakers