What follows is an attempt at a step-by-step photo and caption Thread for resurrounding a JBL low-frequency transducer. I thought I'd compile this since I was doing a pair, and it might be of interest.
Every resurround I have done is just a bit different – got it’s own unique issues. The 2122H’s done here were quite simply the easiest I have worked on – the surrounds were happy to come off.
So, what follows are learned techniques that work fine, are gentle on the cone, spider and coil, and achieve good results. Most of all, I am deeply indebted to my new-found friends, Rick Cobb (looneytune2001 on eBay), who mentored me through my first, seemingly terrifying experience, and whose instructions gave me the confidence to give this a try. His kits fit perfect, and instructions are excellent - use these pics as adjunct to his kits. And, "thatguy" here on the Forum who made the introduction, and likewise was enthusiastic about "doing it yourself".
My engineer had a great idea he shared over iced Corona’s while in New Mexico last week – in the 1970's, he placed the transducers on a “Lazy Susan” to do this work - a hilariously smart idea, because you keep rotating the dang thing for the entire project! Good thinking. Also, I try and cover the rear of the magnet/motor with masking tape to avoid scratches and soiling it with old surround.
Be patient, keep good music rolling through your version of the littlest Altec's, and be persistent.
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First, my idea of a workbench. Stand-up, covered with a rubber “Borco” mat that protects both the table and the transducer. Those cabinets on the wall are littlest 1974 vintage Altec Coronas refitted with LE8T and LE20, and a Cross-Tech 2-way crossover. Sweet…
Tools are close-up glasses, Swiss army knife and #10 Exacto. Lights are a mix of movable spots and floods, and two chic warming lamps to keep the basket warmer than typical coast-side foggy…
