I know that this is a very old thread, but I have seen it pop up in my searches a lot, and thought I would chime in with details on the 4, yes 4 distinctly different speakers that Paradigm has used the Esprit name on, not different generations, but fundamentally different speakers!
The original post was about the oldest Esprits, the Esprit Monitor, these are the ones that Paradigm correctly gave the specs to in their response, and these were the correct speakers. In various threads above these are detailed, but a quick summary, these were 37" tall conventional towers with 2 8" woofers and a 1" dome tweeter, soft dome on the early versions, aluminum PAL tweeters on the "2nd gen". These were from Paradigms Reference level and among their top speakers at their time (and I bet they still sound great), but are exceptionally rare.
Next up are the Esprit BP (and later BPa). These are the ones that many posters thought these were and even made fun of Paradigm for not knowing their own speakers, but in fact they were the ones confused. These were also part of the reference series and also among the best speakers Paradigm made at the time and I can confirm that they still are great! These are more common than the Esprit Monitors, but still tough to find. As stated above these are bipolar towers (45" tall) with a 1" PAL aluminum dome tweeter and 6.75" woofer on each side. Later the Esprit BP was upgraded to BPa level, which consisted of the woofers being upgraded to yellow kevlar from the black ones on BP. BPa are very rare. Just a note on this family, as mentioned there were also Eclipse BP and BPa and Export BP (I have been unable to confirm existence of Export BPa). The Eclipse have 8.25" woofers so are obviously a good deal wider in addition to being 48" tall. The Exports were much shorter at 40", but they also had slightly different woofer cone material (I assume of slightly lesser quality, and had soft dome tweeters.
Now here are the red headed step child of the family. These are the ones that the original seller seems to have thought he had. These are from Paradigms entry level performance series and had a 19mm titanium dome tweeter and a 6.5" woofer. They were towers around 30" tall, and while I bet they sounded good, they were nowhere near the level of the others that were all part of the much higher end reference series. There were v3 and v4 versions of these, but I couldn't find any real differences.
Finally the Esprit name was revived for the (hopefully) last time in the form of some really nice on wall speakers. These were 3 way designs with drivers that were very similar to the Studio series, basically an on wall version of the Studio CC-590 v4 consisting of a 1" G-PAL aluminum dome tweeter, a 4.5" dedicated mid, and 2 7" bass woofers. I believe these were only available in one generation and were marked as v4.
I hope that clears it up, lol. Paradigm Esprit, 4 distinctly different speaker lines with that name, and if that wasn't confusing enough a total of 7 different versions. Why Paradigm, there are so many names to choose from, once you used Esprit for something, seriously, just find a new name if the speaker is completely unrelated. A modern example of this is the Mitsubishi Eclipse Crossover, no, just no!