finally after years of searching i found an original pair of 4560a (the last of the 4560 series). i try the cabinets with 2220, k140, k130 ,2225. For now i keep the k140 cause they got the best lows & mids for jazz music. My previous system was a pair of 4530 copies with exactly the same drivers except the horns (2390 vs 2355). Well i can say that the 4530 are better cabinets in almost every spec. Better lows, more direct sound, no boomy box sound, and much more cleaner with the 2309 horn (i almost hate lenses). but i love the look of 4560 that why i have kept them for now. Soon a pair of original 4520 will come home, so until then i will enjoy the 4560 sound with all the good and bad things of it.