Morrow SP7 Upgrade.


Currently using Morrow SP4 Speaker Cables on Low Frequency (bass) in bi-amped system. Various Speakers used, at the moment Revel Ultima Studio. The Morrow's sound best of the cables I have driving low frequencies. At the moment Morrow have 60% off in their trade up program, (I would trade up SP2's I have in a budget system). Anyone have experience going from SP4 to SP7's, and how much better? What other alternatives for bass frequencies would you suggest if not the SP7's?
initforthemusic
Excellent bondmanp. Received a batch of CD's yesterday, so had a long listening session. The SP7's have really settled in nicely, getting bass reproduction I never thought was possible from CD playback. I've tried a few different combo's and the SP7's on bass & Cullen's on Mid/high is definitely doing it for me.
Some of Sheryl Crow's stuff is really done well.  A good recording really excels with a decent system for sure.  
I ordered the MA5 on Sept 3, with Eichmanns and a 10 day burn and from what I've read, arrival could take almost a month.  In the mean time, I ordered a pair of MA1.1 since their trade in program makes prices so attractive.  The second pair I've only asked for their 2 day burn, so I might well receive the 2nd pair before the first.

Either way I'm psyched as I've only had the MA1 and MA3.  
213runnin - Yes, these are bespoke cables, so the full three weeks plus burn in time is not unusual.  My second order from Morrow actually took a bit longer than a month.  Patience is not something us audiophiles are known for, but, hopefully, the MA5 will be worth the wait.  Please keep us posted.
I just got an email from Morrow yesterday informing me that the cables are in the mail.  Right now I'm assuming that they are shipping both together, they should be here by October 2, so under a month with the MA5 and a ten day break in service.