SET's are high strung little things, like Chihuahua. They look so harmless, but they can nip at your ear lobes! Little amps think they are big amps. You put one next to a Class D and it thinks it's the same. It will not back down, even though Class D is so much bigger! In it's mind it is huge!
SET's require less exercise. They are "lap dogs"; let them sit around and look pretty, but let them know who's boss! They are very protective of their owner. You must keep them in line when guests come. The owner must train them by putting them on a leash. Have guests enter the listening room several times. Yank the leash and tell the SET "Shhhh!" It will obey if you are calm and assertive.
I am the Amp Whisperer!
;)