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New 12/14/2007: My brother Marshall has redrawn the A7 original plans for better clarification and readability. You can down load the PDF document here: Also the bass horn flare is better defined here. (Note: When I open this word document in Internet Explorer it works but when I hit back it ask for a password. All you have to do is hit cancel on this and it's ok. I'm terrible with web stuff so if anyone knows how to fix this let me know. BTW, if I just click save instead of open it opens in a new window and there are no problems)
For all your Altec parts and repair needs, Great Plains Audio
6-9-05 Iconic Manufacturing Company!
Check out this new company! I was just made aware of them today but it looks like they plan to not only provide a source of the original Altec hardware but also pick up where Altec left off and take the Altec sound into the future! I don't know the details of their plans at this time and portions of their site are still under construction but if you are an Altec fan I would keep an eye on this! This could be a great thing!
12-6-09 Upgraded crossovers for Altec by Iconic Manufacturing
Building the A7's...
These cabinets are based on various Altec drawings from the early 825 cabinets to the later versions of the 828 cabinet. Like the 825, only the upper section of the rear panel is removable. We figured keeping the lower section rigidly mounted would give the cabinets more strength. Also, we added an additional brace in the bass horn section to make the 1/4" plywood more rigid. In all we built three sets of cabinets one of which ended up in my master bedroom.
My set uses the 416-8B woofer, the 511 horn and the 806 compression driver. I found all the hardware on E-bay along with a lot of stuff I really have absolutely no application for. BTW, a word of warning, E-bay is a disease! You start buying and you can't stop! Allow me to prove my point and click on the thumbnail below to see most of the Altec hardware I have bought on E-bay. Since this photo there have been a couple more sets of horns and cross-overs etc. Don't pay attention to the "Evil cousin" JBL horns on the right.
I grew up with a set of Altec 846Bs in the living room. The old things still sound pretty good! The dipole PA system I built sounds considerably better but I still really like this old stuff. I want to build a set of Model 19's but where am I going to put them??? I also want to build some A4's but forget it!