I've been a fan of the original Altec A7 'Voice of the Thetre' loudspeakers since childhood. I grew up with a set of Altec 846Bs in the living room and over the years have owned both A7 VOTT's and Model 19 Studio Monitors. I don't think any of these really compete with the more modern projects DIY speaker builders can build today like dipoles and CBT arrays but considering the A7 was designed in the 1940's, well before Thiele/Small, I think they're pretty good.
For you kids out there with 'Altec Lansing' PC speakers, what you really have are 'Spark-o-matic' speakers. In the late 1970's to early 1980's Spark-o-matic made a lot of cheap car audio speakers and while they were actually pretty good for the price the name quickly became synonyms with 'cheap audio'. Around 1986 they bought the rights to the name Altec Lansing for consumer products and for commercial products when the real Altec closed around 2000. Altec Lansing was a pioneer in audio making most of the commercial cinema speakers from the 1930's through the 1980's. The PC speakers today baring the name 'Altec Lansing' have no similarity with the real Altec
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Some years ago I made a number of e-bay purchases of Altec hardware after which my brother Marshall and I built three sets of A7 cabinets. One set belongs to a friend, another set is suspended in the Audio Artistry shop for background music, and my set is currently stored.
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Some original construction photos from my original web site...
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.
.jpg/220px-PreSonus_Eris_E4.5_HD_Active_Studio_Monitor_with_popup_-_2014_NAMM_Show_(by_Matt_Vanacoro).jpg "Diy")
My brother Marshall has redrawn the A7 original plans for better clarification and readability. You can download the PDF document here and the horn flare PDF here.
12/5/2020: Marshall has now drafted a drawing providing details on how to cut the complex curve for the horn flare. You can download that drawing here. This .pdf drawing is best when zoomed to 100%
For all your Altec parts and repair needs.Great Plains Audio
Also...Iconic Manufacturing
Diy Altec Console Table
Pictured above is Bill Eckle's system housed in home builtcabinets, with smoked glass doors with the interior lit by 'peanut'lamps when the door is open. Also visible are the Aria 5s on the 1259 subcabinets. Of his cabinet, Bill says 'I bought some cheap cabinetsyears ago with the smoked glass doors. I replaced the tops & bottoms,and covered the 1' fiberboard sides, inside & out with 1/4'oak plywood. Added half round oak moldings to the front. Installed 2'x 2' aluminum angle on each side, drilled and tapped the angle forEIA spacing and now have rack-mount cabinets. There are also 'peanut'lamps on the edge of the doors that light when the doors are opened. Nowthe hard part is fabricating angle iron brackets to rack mount all my components.'
Diy Altec Console Tables
Pictured above is the TV base (before the grill clothis installed) with a pair of Altec 755s in the doors to serve as TV speakers.Seldom is the TV played through the main system. This TV base in on castersto provide easy movement, although the rear of the system can be accessedby opening the window behind the cabinets, and reaching in from outside.Switching phone jacks were installed in the TV speaker wires to plugin the 755s. The Altec 755s were designed for speech intelligibility, andare relatively efficient so make excellent TV speakers.
Diy Altec Console Cabinet
Bill can be contacted via e-mail at wmeckle@uswest.net
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