Matthew- I've owned a Jolida 302B and loved it. It really got me hooked on tubes and I'll never go back. That was some time ago. First thing I'd do is swap out those Chinese tubes if you have not done that already. You don't even need to spend a bundle to get a much better sound IMO. EH, JJ Tesla, or Svetlana EL34's will all make a significant improvement over the Chinese. I like the Tesla's best, but any of the three will be big bang for the $. If the JD100 comes with Chinese tubes in it swap those out right away too. Peter could probably steer you right there as he owns a JD100. They're 12AX7's aren't they? If so, I love NOS Tungsram's! Peter's recommendation for Silverline monitors was spot-on. The SR-17's would be outstanding with that amp for the music you described in a moderate sized room. If they are too much $ look at the SR11's or 12's though I don't have any direct experience they have had many good words here and elsewhere and are much less expensive. I owned a pair of SR17's and they are outstanding speakers....they will completely disappear, and put out lows that a box that small has no right to. OK still looking for something less expensive? Vintage Klipsch Heresy's or Forte II's would also rock your world. A bit more punchy and bright compared to Silverlines more refined warm sound. Among the Klipsch's strengths are wonderful clarity and imaging, though not quite as transparent as the Silverlines. The Forte's will go a bit lower, the Heresy's are a bit smaller. Both are great speakers for the money. Some folks don't like the horn sound, but I do love them with tubes. Sounds like you are putting together a nice system. The JD100 is supposed to be very nice as well.
Have fun!
Marco
Have fun!
Marco