I agree completely with HRobert. Although I have had for several years an old Kustom kombo with a K-140 that sounds great, after getting a 200S cab with D-140s and comparing it directly with my old Sorado cabs I am completely hooked on JBL. The old Sunn transducers sound very good, no question about it, but the JBLs have a richer tone with better clarity.