[quote name='LukeFRC' timestamp='1325720023' post='1486776']
This... I find it an interesting idea of how bass guitar can and could work. I'm not sure if it is for me but having a bit of a blether about it can't hurt!
Personally I've ended up looking at loads of schematics trying to work out how filters work like this, and finding a bit about the Bassxx preamp too....
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I have filters on my Alembic, with all due respect to Greeneking, I find them limiting. He and I may have different requirements however which is what prompted my question over what you are looking for. I've tended to look for something that makes a great sounding bass more versatile. The alembic is a nice sounding bass but I wish I could have more boost in the lower mids, the filter based system doesn't deliver that.