I can't answer your "feed forward" question technically, but I was on the phone once with Gary Bedini regarding my Bedini 100/100. I asked him how it's possible that a pure class A amp could run as cool as my 100/100 (it never gets hot - especially when idling)? His answer was it's because it's feed forward. Hopefully somone more technically savvy will answer with the technical details. I will add that my 100/100 is an amazingly good amp - it bested my Ayre V3 in my room/system, and the Ayre cost me (used) nearly twice what the 100/100 sells for.
As for the 22 lbs question, I think that must be a typo in the brochure, an dit's actually 42 lbs.
As for the 22 lbs question, I think that must be a typo in the brochure, an dit's actually 42 lbs.