Here's a patch I use for a nice clean tone on my Jazz bass...
Section 1: Graphic EQ - set to taste
Section 2: Bottom B - Bass 5, Trebl 6, Level 95
Scetion 3: Agamp - Bass 0, Mid 4, Trebl 0, Mid_F 120Hz, Gain 40, Level 90, Char Both, Cab 4X10 SWR, Mix 55
I was messing around with the synths and...