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I was trying to find out of if the 816's were plywood, but the lot sold before the seller got to the storage location to check. I would have liked to keep a pair of the 816s, and a pair of the JBL cabinets, and sold off the rest. I've got no idea what the majority of those drivers are.
Large Lot 16 of Stage Concert Speakers Cabinets JBL Altec | eBay
I think the 816's are homebrew
What makes you think that? I didn't notice much detail, and thought the pictures were kinda bad.Quote:
Originally Posted by Old Guy
If they are homebuilt, that makes me feel better about missing out.
You'll get no argument here.Quote:
Originally Posted by Old Guy
That "825 block" doesn't belong there. I'm referring to the block visible at the top of the horn throat. That part hasn't been used since the 825 cabinet.
http://i107.photobucket.com/albums/m...16homebrew.jpg
I guess I've never noticed that before. I can't tell exactly what it is, from the picture. What is it's purpose on the 825?Quote:
Originally Posted by bowtie427ss
It ties the woofer baffle/motor board to the top panel of the cabinet.Quote:
What is it's purpose on the 825?
Later the 828 cabinet would use a dado and triangular glue blocks on the interior side of the motor board. The differences in motorboard construction are pretty well illustrated in the various plans in the Altec Library.
The 816 drawing in the "70's enclosure plans" doesn't show blocking of any kind. When we built them we used 1 inch square hardwood blocking.
Okay, then the A7 cabinets that I used to have were the later design........ I was never sure exactly what cabinets they were. If I recall they had some features of both the 825 and 828, so I always referred to them as 825/828 in posts. I figured them to be a transitional design.Quote:
Originally Posted by bowtie427ss