? Speakers for a vintage tube receiver

I'm looking for speakers for a soon-to-be finished Fisher 500B overhaul. Based on questions that I hear in hobbies where I actually have a clue, I figure that some background might help those who would kindly offer their advice.

-For the past several years I have been listening to (and enjoying immensely) A Jolida 102B & Soliloquy 5.0s, along with a variety of cd players that have come and gone.
The amp & speakers were purchased as a nice, affordable, entry-level package.

-My understanding of things technical is extremely limited. My audiophile vocabulary is likewise small.

-I understand that the Fisher will not be as accurate(if that is the right word) as the Jolida-- and that's OK.

-Here is where words fail me. I'm looking for speakers that offer a bigger, richer, more mellow sound than the Soliloquys. Basically, the sound that I recall from childhood visits to audiophile friends and neighbors back in the sixties.

-By way of illustration, I have a an old Grundig Musikschrank console with a satellite speaker and some sort of odd little sound generating thing that sits on the floor. Listening to Morning Edition on NPR is twice as nice on with the Grundig, than with anything else in the house. It is as if I am sitting in the studio. I'd like to get this sort of experience listening to music with my Fisher.

-This will be for use in my home office (13' X 16').

-New or used makes no difference to me. Sub 1K would be nice. +/- $500 would be nicer still. Keep in mind that lots of subtleties are lost on me. That is, beyond a certain point, the return in performance is minor enough that I may not appreciate it.

Any sort of leads would be helpful.

-Am I looking for a particular set of specifications, or certain type of speaker? Is this sound too...romantic to be found in current production speakers? Am I a clueless newbie, or what?

Well, if you read this far, you may want to take a crack at an answer. I would certainly be grateful!

Regards.

Chris