Having recently promoted a pair of Radford Tri-Star 90 speakers to the Sewing Room, it was time to make them presentable:
The original foam grill covering had disintegrated and left fossilized adhesive over the metal gridwork. Being not much for historic accuracy, I used double-sided duct tape (the blue barrier film peels off) and stuck some allegedly acoustic foam in place:
The foam is a single sheet wrapped around three sides and, after some whittling, measured 19.5 inches tall and 19.25 inches wide. The width surely depends on how snugly it’s stretched, so allow a bit more and trim to fit.
Duct tape probably isn’t the right adhesive for the job, but we’ll see how long it lasts. I really did not want to use spray glue and doubted my ability to slobber liquid stickum without oopsing the cones.
The speakers sounded great back in the day and they definitely sound much better than my deflicted ears can hear now. Mary thinks they’re OK and that’s all that matters.
Patrick, wherever you are: thanks!
The Smell of Molten Projects in the Morning 
Comments
4 responses to “Speaker Re-Foaming”
Nice to see healthy sized speakers. Not like those 6″ woofers is the BIG speakers these days.
These are “bookshelf” speakers compared to the huge ones of the day, but we’ve never had a bookshelf where they might fit. Not to mention our bookshelves are full-to-overflowing with books, of course.
Bonus: the bass line is about all I can hear these days.
I’m recalling the 24″ x 72″ Magnepan speakers that didn’t make the trip when we moved in ’03. When I had them, there was a room that they worked in. They were wonderful when I could actually hear the sounds…
Lots of books in that house, in shelves pretty much everywhere.
The biggest speakers in the household are in the shop, and those are near-field monitors when I thought I could learn to play keyboards. Bookshelf sized. Never learned enough to play well.
(One ear hears treble. The other has serious high-pitch attenuation, courtesy nerve damage. Sigh.)
Now, those were ground-pounders!