kef and harbeth are just two well established successful speaker makers that consistently use big hegels at shows
my sense is that this is because they feel hegels control their speakers very well while not otherwise editorializing on the music played through them, even at significant show demo volumes, thus allowing the speakers to be at their best for demo listeners
not to say hegel is the only amplifier line that can do this, but it is instructive for amplifier buyers to note this fact