Admittedly, I need to spend more time eq-ing the guitar into my Fender and Vox tube amps, but so far, the amp that sounds best to my ears with it is my ss Fender Rumble 40 bass amp. I know that many of the jazz guitarists who interest me used Polytone, and tube Fender and Gibson amps. I'm just surprised at just how good the little Rumble is for clarity and a throaty bass that doesn't overwhelm. My Eastman has only a volume control going to it's little pickguard-mounted pickup.
I dig the Fender Rumble amps. Great bass combos, not bad with any guitar if you take advantage of the excellent eq systems in the Rumbles.