+1 John Rutan is fantastic to deal with.
Unsolicited advice: I absolutely love my 3A Sigs, but having heard Quattros at John's store recently, perhaps I should have stretched to at least the Treos, if not the Quattros. We can debate how much of a speaker's character is determined by the tweeter, but I felt that the Quattros (with their Carbon tweeter) had more "air" than my 3As, and the bass a bit tighter.
Unsolicited advice: I absolutely love my 3A Sigs, but having heard Quattros at John's store recently, perhaps I should have stretched to at least the Treos, if not the Quattros. We can debate how much of a speaker's character is determined by the tweeter, but I felt that the Quattros (with their Carbon tweeter) had more "air" than my 3As, and the bass a bit tighter.