Is anyone familiar with Infinity Slope brand speakers?

roxy54 is correct, Joseph Audio obtained the rights to produce the JSE designs after the latter went out of business.  The infinite slope concept for the crossovers was originated by Richard Modafferi, an engineer with McIntosh.  The idea was to minimize overhang between the drivers to increase clarity.

You can call John with any questions about your speakers or replacement drivers at 860-918-3088. He's a great guy always happy to help.

Thanks to all for the responses. I did have a type-o in the initial thread. They are in fact Infiinite Slope speakers and not "infinity" slope. Sorry for the confusion. Thanks to chayro and others for keeping me honest.

All correct...

Richard Moddaferi, of McIntosh fame, patented the Infinite Slope crossover back in the late 80s.  John Solecito championed the design with his JSE Infinite Slope Line.  JSE went under in the early 90s.  The aforementioned Jeff Joseph appears to be the lone wolf implementing it these days.  For what it's worth, Ray Kimber also has a unique and interesting (Bud Fried, the cable hater, of all people, was sort of an inspiration to Ray) patented crossover for license, but I don't know if anyone's employing it.

Sounds like you either have the JSE Model 2 or 4. If you send me a picture, I could perhaps remember.  The entire line was a very nice / good sounding lot, and different than you encounter today.  It hearkens back to the 80s (and 70s?).  Definitely on the relaxed and luxurious sounding, if blunting the transients and detail in the absolute.  That's a reflection of the crossover, which points to another current thread where I mentioned the importance of same, but got little traction out of it.  People don't realize to what extent sonics reflect the crossover; it's easy to get lost in the sexiness of drivers and cabinetry.  Keeping your loudspeakers on the casters, or installing spikes, as opposed to removing them, and siting them directly on the floor, will keep them as sharply focused as they can, and mitigate their flaws to the greatest degree.  At this point, the value they provide sonically far outstrips their monetary value in the market.  If you like them, hold on to them for a long time

When looking at your speakers from the front, if the cabinet is rectangle and the front side edge are sharp corners, it is the Model 2. If the front side edges are beveled, it is the 2A.
If from the front from side to side , the bottom of the cabinets are obviously wider than the top, (sloping inward like the letter "A"), you have the Model 4...and I'm jealous.