I have been to Bob Smith's house a couple times in the past few months. Each time I heard one of his former speakers in a just average system and I was very impressed. Bob and I have become good friends since he did the Level 3 mod of my Nuforce Ref 9 SE V3 mono amps which are now stellar in all ways. Bob is getting back into the speaker business with a lower priced great speaker in the Aether Spirit I and he is going to come out with a couple of more higher priced and even higher performance speakers soon. He has a new backer that is very impressed with his speakers. This will allow Bob to crank out his speakers at a better clip. His son is now working for him full time and is quite excellent in his abilities also. His speakers have no discernible driver anomalies meaning it's like listening to one sensational driver. They also have a serious jump factor in lifelike dynamics. This is in a less than 2 cubic ft. enclosure. The stuff he's talking about coming soon is outrageous!
Keep in mind that he and I are becoming good friends--BUT...I'd call a dog a dog if it barks. His speakers have little to no irritation factor. I'd say none, but there was one cut out of at least 25 that I heard that did bother me some. The other 24 were stunning with bass to die for in that size enclosure. They DO NOT break up at any SPL level either.
Bob