I have the following: *JBL E-155 in a Bag End S18 cab, and old one... *Mesa Diesel 410 (older model, front-ported)... Using an SWR SM400 or SM400s. I can use both amps each dedicated to lows or highs, to suit the needs of each of these disparate-sounding cabs... or not, but that's a fairly new running experiment. I have opportunity to buy back my old Bag End S15-D cabs, and it will require my losing at least one of these cabs. I'll most likely keep the JBL/Bag End. The S15s are hilariously good cabs- efficient, carry convincing lows and good full-freq signal, and are an EZ carry. I'm just posting this to get some feedback on it all... the SWR heads might not be the best for the S15s, what with all the low end they seem to be designed to carry within those over-engineered guts... and I'm aware of the mod to nix the Aural Enhance circuit. I love the JBL, and can build a smaller box for it. I dig the mid-punch and growl of the Mesa, tho' it doesn't do the same heft as the JBL OR the Bag Ends. The Bag Ends, I realize this... I have to have them, even though right this moment the Mesa stands out as a voice I probably won't get with the Bag Ends. I'm simply having an "I want it all dammit" moment here. I'm sort of looking for a little reality check. These things get over my head, which is why I really need to get this done and get out of the ring... Any comments at all will be considered friendly diversion, and any good advice will be considered welcome intervention. Thanks for reading.