Have heard the JC-1s on several systems including Sounlab Majestics,Nola Grand Vipers & several Usher models/
Bass is deep & well controled with good decay but not world class & where as the mids & highs are far from harse, they just don't have the inner detail or liquidity as a good tube amp{duh}. I liked the Sounlabs best with Wolcott's & as the Megaline is so efficent I would assume they would match nicely. My 2 cents