Hello - newbie here, though 15yr bass player. Am a new Fender Jazz Bass owner (Highway One), and looking to get back into getting a decent amp/combo amp. Curious - what do some of you Fender Jazz owners find does a great job of bringing out the warmth and zing of the Fender Jazz. (I've played the Ampeg B115 combo - and while the warmth is there, it's all muted (to me anyway) on the mids & uppers.) Thoughts?