Thanks for the responses. I ended up upgrading to the Morrow SP7's as like what the SP4's do on the low frequencies. Would be expecting the SP7's to add quite a bit more of what I like. With the 60% off Morrow trade up and easy pay 5 monthly instalments helped with my decision. shubert the SP6's were only 50% off, so not much more to go to SP7's.
Cheers.
Cheers.