Infinite Slope .5 speakers - does anyone have promo material or any specs on this speaker?


I have been a long time Infinite Slope owner (multiple pairs of .6, Model 1, Model 2) and thought I knew all of the brand’s offerings from back in the day (they made a Model 4 I never owned plus various versions of their primary speakers), but stumbled onto a pair of speakers from them that are unknown to me. A previous post a year or so ago on a forum led me to believe these are .5 speakers (which I also found listed in the Audio Blue Book) but I have been unable to find only any kind of promo ads for this speakers, any specs, etc. Google searches don’t even return any images.

I know the company for a short time also made a home theater setup but this doesn't appear to match with those either.

These speakers are rear ported, about 11" side and 18" high. 9" deep. They are very heavy and don’t have the usual Infinite Slope label on the back.

Anyone out there have any of this information in their files someplace? See photo of the speaker. I have to also say that these things are very highly resolving and in certain ways I like them as much or more as any of the other Slope models I have owned. Now I just need to find a spot in one of my systems for them to live permanently.


Infinite Slope .5 speakers
 

larryincmh

not finding anything about the speaker OP asked about,

Have a nap 1st, or you will nap during! This 24 minute video is Richard Modafferi (ignore the name John Miller that appears) explaining the ’advanced’ version of his Infinite Slope crossover (still used in some Joseph Audio speakers). Recorded 2020? Posted 2023?

https://www.youtube.com/watch?v=ZcKHnhWLovQ

Here’s a list of his Patents that popped up

https://patents.justia.com/inventor/richard-modafferi

@elliottbnewcombjr thanks for the tips.  I might reach out to Source and see if they know anything about this speaker.  I don't know why I have not done that before.  I also wondered if it was just a speaker designed to be part of a package, but then when I saw it listed in the Blue Book as a separate release that made me want to get more info.  These speakers are quite engaging however and fill my room nicely, I am not missing my Focal's I usually use while demo'ing these.