So, I have this Levinson Blade B4 J-Bass, built in '91. I only play it at home but last year I hired it out and was at the sound-check. It went through an SVT Classic but, amp aside, I was surprised about how Old Skool active it sounded on a stage: it had a very prominent top end and seemed to lack some low end. Adjusting the trim pots made slight differences, usually to the lower mids and sometimes not for the better! The bass was never used in anger at the gig but it got me thinking about upgrading the pre-amp system. Levinson Blade tell me they have not updated that system so I'm going to swap it out for something like the John East Uni-Pre 3.
Before I make my mind up, has anyone else got any recommendations? It has to be a three-gang job as there are only volume, blend and boost on the B4. Also, I recall that the Blade has a dummy coil to filter out interference so if I swap the blade circuit out the dummy will become redundant.