I have the 7 se's for about 3 weeks and the sound is absolutlely the best I could ask for. Call Kevin at Von Schweikert since he developed both speakers. I believe the ribbon,tweeter,and midrange are the same in both speakers.I have a fairly large room and sound fills the room with ease and is never fatigueing. The bass is deep,fast and taut without being overwhelming. You won't go wrong with these.
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