Ibanez BTB 776 (Bartolini MKII X2) 6 string - New Pre? Or PUP's?

Hi Tb'ers.
I have a 6 string Ibanez (bought for about $900 AU)- and although I like the instrument - I really don't care for the sound, which I am presuming is 2 Bart's MKII soap-bars on it and whatever preamp Bartolini put it.
Strings are Fedora Nickels.
The problems I have are:
No 'seperation' between strings or notes (it's all quite Mushy really)
The instrument sounds unremarkable and quite middle oriented.

I play a lot of chords (classical guitar picking style). It was a bit easier to distinguish the was of notes with flat-wounds - but still sounded "unremarkable".

Any recommendations for a different Pre amp? Something with an eye on the budget? would that help? I here Bart' don't make the best preamps. Is it the Pickups?
Thanks everyone!

 

Bump myself yo!