2 exactly the same size and shape yellow block encased caps, in parallel.
Surviving one marked 104K 400V and measures 94nF but the other one
marked 33 ,then possibly 4, then the rest is burnt away.
So amp , as a combo ,built for a specific speaker fair enough, but would
zobel using 330nF instead of 430nF +/- 20% or whatever , be that
significant?