I have very similar set up as Dave,but with two amplifiers and under strut subwoofer..Hertz are very good quality speakers,Jl amps are superb....
Saying that ,I bought Jl subs from guy who owned them..He got Audison set up in his BMW,the sound was amazing..
GLWS Dave,shame I didn't have chance to hear your set up..Are you fitting new audio or just selling your zed too?
Zed went last month mate...
If these don't go soon they will go in Mary's Mazda