Thanks for all the replies.
A bit more info. for you the Jazz bass is fitted with a MMC active TB cct. the pickups are the originals.
The TE pre-amp is the GP12 feeding into an Ashdown Mark King head (via the return skt).So I'm just using the power amp inside not its pre-amp.
MarkBass 2 10 and a Hartke 4 10 Traveller Cab.
Even with new strings (Elites) the bass on the E always sounds a bit dull I was wondering if a Baddass bridge might make a difference. The neck is Maple fretboard so should be bright enough.
The closest sound to what I would like would be from this link
[url="http://www.youtube.com/watch?v=47PYoNEd4tk"]http://www.youtube.com/watch?v=47PYoNEd4tk[/url]
Although it's a MM and modified there are lots of others out there getting this tone with other basses.
Perhaps it's me.