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> Speakers that fit with no mod to factory housings, $30 a pair, and here’s how I did it (post now works!)
Garland
post Aug 24 2024, 08:47 AM
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I wanted to set of speakers in the factory pods, without hacking anything up, hoping for a little better sound than the 50-year-old paper, torn speakers.

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Omega 4 x 6 dual cone BU-46.7 my local speaker store says you can still order them, if they’re out of stock.

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They look good except for the bright gold medal that will be seen through the grill

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Also, they ride too high in the housing due to not clearing the factory mounts

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I marked, the speaker where they need to be trimmed, and with some help from the clippers, done.

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Now they clear the posts, and Mount flush.

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Here’s the view from the front side, that doesn’t look that great

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So after cleaning the metal well, so paint will adhere.

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chmillman
post Aug 27 2024, 03:30 AM
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Here are 2D CAD (DXF) files for the laser cutting. Of course, they are custom for the JBL's. The main parts are in 3mm (1/8") MDF, the reinforcements which I glued on the back are in 4mm, they provide the bearing surface for the washers using the the original screw holes. You could also do them in 3mm - just might need an extra washer when installing.

Attached File  JBL4622_914_MDF.zip ( 28.99k ) Number of downloads: 42


3D print (STL, STEP) files to follow when I get a moment.

OK, here are the 3D files. Two versions, a one piece, which due to the part configuration, your printer will need to have support material and there may be some cleanup; and a two piece which can be printed flat on the printer bed (no support required) and then glued together (superglue, solvent, etc.). In the .zip are ready-to-print .stl's as well as STEP files if you have a 3D CAD system and want to modify them. I only put in one side, the other side should be mirror-imaged, which all CAD/Printer softwares can do.

Attached File  JBL_4622_914_3DP.zip ( 177.23k ) Number of downloads: 65
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