Hi Storm
So you used hardwood instead of ply + veneer. Interesting... ¿Was this recommended by Scott or just a personal decision? Do you feel if the enclosures resonate? Did you use recommended damping or something else?
Gaston
It was more or less my decision. I did some research and found that a very hard dense wood would be suitable. Basically a hardwood that is approaching the density of MDF. A lot of people use Baltic birch ply, but it's really not a very dense material. Think of using lead as a sound dampener...it works really well, so I went with the nicest looking, most dense, cheapest wood I could afford. I also looked into using wenge, but could not fork over the $12/board foot that they wanted for it.
That and I have absolutely no idea how to veneer.
Scott and I went back and forth a little about my ideas and he didn't seem to object to anything. He said if anything, the sapele would have a superior stiffness/weight ratio than that of commercial ply. The empty voids in the speaker are filled to the brim with kitty litter to dampen them, and then the second side gets glued on to seal everything in.
I have both of them sitting on 303 stainless steel speaker spikes that I machined up at work.
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Density by itself is not an asset. If 2 materials have the same stiffness, the less dense material will usually have the edge (there are other factors, like damping, which have me fudging)
dave
and with wenge, you'd be digging out splinters for days - if you found them all before they started to fester
the sapele looks gorgeous
and as Dave says, mass/density is not always an advantage
and not all commercial or even "shop grade commodity" (read $hite) ply is created equal
the sapele looks gorgeous
and as Dave says, mass/density is not always an advantage
and not all commercial or even "shop grade commodity" (read $hite) ply is created equal
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They are very nice, storm.
Don't complain too much about crap... you should see the kind of *it that I find on my BIBs every single time I dare to look inside their ceiling-firing mouths... big EVA letters, balls, marbles... Speakers are kind of a *it magnet when one has kids in the house. Metal grills in front of the drivers are a must too!
Thanks, I wasn't sure what that was all about.
FH3
Hi,
Finally finished my FH3's with A7.3 drivers. Fronts are American Black Walnut paper-backed veneer, which was grain filled & one coat of lacquer applied. Finished with a rub down using 00 steel wool. The rest is gloss paint with clear Acrylic Lacquer top coat ... wet sand at 600, 800 and 1200, fine cutting compound, polish and resin/wax finish. Not perfect but good enough for a first try.
Last thing to do is gluing the extra covers to the 7's
Big thanks to Collin Topps for making the kits and for some handy hints. Plus a
to the FH team for making them in the first place
Next? 5 x mMarS for A7.3 then perhaps a pair of Pencil's for A10p ...
Paul.
Hi,
Finally finished my FH3's with A7.3 drivers. Fronts are American Black Walnut paper-backed veneer, which was grain filled & one coat of lacquer applied. Finished with a rub down using 00 steel wool. The rest is gloss paint with clear Acrylic Lacquer top coat ... wet sand at 600, 800 and 1200, fine cutting compound, polish and resin/wax finish. Not perfect but good enough for a first try.
Last thing to do is gluing the extra covers to the 7's
Big thanks to Collin Topps for making the kits and for some handy hints. Plus a
to the FH team for making them in the first place Next? 5 x mMarS for A7.3 then perhaps a pair of Pencil's for A10p ...
Paul.
Attachments
Nice. Do you have a photo of the entire finished speaker instead of small sections?
