For those too young to know, the JBL L40 is a "large bookshelf" ported two-way speaker with a 10" woofer and 1" dome tweeter built in the late 70's. My woofers of course have been re-foamed. I haven't had a chance to audition the 310II's yet but have read they have a loyal following. My L40's still have their original maple finish but everything else I own(TV, all audio components, center & sub)is black. I can't bring myself to stain them black. I listen to mostly music 70/30, the music being concert DVD's and old CD's. Music-wise, I listen to everything from Rock, Blues and Jazz to Classical. F.Y.I...here's the other components to my budget system: Yamaha RX-V530, X-Box, JBL L40's(mains) Boston Acoustics 424v(cen) JBL N24II's(rears) Velodyne CHT-12(sub). I wonder if there's anyone out there that has heard both of these speakers? Maybe Phil("Mr JBL")??? If I replace them should I stick with my Home Depot 12 gauge or buy some Monster Cable Z1? Sorry for the long post! Thanks!