Well I got the thing home. Unfortunately the woofer was wrong, fortunately it was still a pretty good unit from the 40?s (IPC lu-1004). Strange that someone would swap out one 40?s vintage woofer for another. Man would I like to have seen the collection of gear that spawned that marriage. The horn is urethane but too good to cut up. I never realized but the h-808 has veins running back to the mouth of the horn.
The 810 is an interesting thing. The horn flairs are separated from the main volume by ridged insulation and there is either a partition below the vent or another space separated by insulation. I won?t know until I pull the bottom portion of the back tomorrow but it seems that it is a full partition.
Here are a few quick photos of what I found. Better will follow tomorrow and I will get going on the drawings.
Looks like I can only attach one photo per post so I will try a follow up
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