My background is in guitar, and my experience in that realm is that certain amps are a good match for certain guitars. For example, I'd pair a Vox with a Strat, but not a Les Paul.
I'd like to know if there are certain bass amps that are especially well suited for pairing with a Jazz Bass, or if there are certain bass amps that do not pair weel with a jazz bass. Opinions?
There are as many J Bass type tones as their are guitar tones.
For the modern funk guys with stainless steel roundwounds and ash/maple J's, it is hard to beat the Epifani UL cabs and the Markbass heads... big down low, smooth in the mids, beautiful upper treble. This combination has become a bit of a classic with the modern funk and gospel guys.
For the nickel roundwound modern rockers or pop players, it is hard to beat the Bergantino AE line of cabs with a nicely voiced solid state head (Genz, Markbass, GK).... punchy, hit you in the chest, grindy/bright up top.
For the more classic rock J guys with nickel rounds or flats on alder/maple Js, the Bergantino HS or NV cabs (depending if you want a bit more 'contemporary' tone with the HS ported cabs with tweeters, or go all the way old school with the one way sealed NV's) with a warm sounding head like the Aguilar heads, some of the Mesa heads, the Thunderfunk heads, etc.
I've found the key to my personal 'J tone' (which I would put more in the 'modern pop/R&B' sort of thing) is to have a rig that can be voiced for a bit of low mid punch to fatten up the low end of a J in a mix. I use various Bergantino AE cabs, and mostly a Markbass F500 head.
LOTS of different combinations sound very good, but I guess I've made a bit of a study in matching J basses to rigs, at least to achieve my version of a J tone.