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10/30/03
Dayton
Home Theater Project Surround Speakers
After
finishing the Eros project I decided to build the begining of a Home
Theater system for my mom. Since I had such good luck with Wayne J.'s
Eros project I decided to try building his inexpensive HT
speakers. While they aren't in the same league as the Eros as far
as sound quality goes, they are very nice given how little they cost to
build. I was especially impressed with the imaging quality. Plan on
building or buying a subwoofer with these speakers since the woofers
don't have the kick needed for home theater.
Test fitting the
cut sections to see if they fit before cutting the rest of the
panels. Measure twice, cut once...
Here the stock is
all cut and I'm ready to assemble the pieces.
Here I'm danding the edges
for a flush fit between all the panels. No matter how carefull I
cut all the panels, they never fit exactly. I've learned instead to
leave the sides proud so that I can sand it all flush. The box isn't quite square but you wouldn't ever
know unless you took a carpenters square to it.
I don't think its really
nessary to fill all the cracks with wood filler since I covered most of
the joints with veneer, but it doesn't take much time and the veneer
will have a better gluing surface if you do. Since I painted the fronts,
it was the only surface that all cracks had to be carefully filled.
After everything had been
sanded and filled, I sealed all the interior joints with latex caulk.
Even though all the joints are glued, the caulk ensures that the box is
as air-tight as possible. Next time I'll caulk the box before I put the
last panel on. That way I won't have to use my finger to get the
sections the caulk gun couldn't reach.
Now the boxes are ready
for the veneer. I used a router to rabbet the tweeter cut-out. I had a
little trouble cutting one of the rabbets (as you can see on the picture
above). Not to worry though, I fixed most of the problems with wood
filler so it hardly shows when finished.
Here I've got the back
glued for the last piece of veneer. I used contact cement because its
fast and easy. I've heard that white wood glue works the best and lasts
the longest but I figure that if the veneer does fall off I'll have a
good reason to build more speakers.
After gluing on the panel I used a
router with a laminate bit to trim off the excess veneer. The laminate
bit is also good for trimming panels flush if they don't fit exactly
(like they never do for me).
All
three of the grills. I beveled the edges with a round over bit in the
router.
I used a hole saw to cut the corners of the grill. Next time I'll just
use a sabre saw for all the cuts. I thought the hole saw would make for
nice round corners but I couldn't line the hole saw up the
straight cuts well enough to make it worth the effort.
Now that all the veneer
has been applied its time to start finishing the cabinets.
First step is several coats of
primer on the front baffles. The plywood is easier to finish than MDF
since it doesn't absorb nearly as much paint. I didn't need to use
sander sealer on the baffles before painting.Then comes several coats of Stone
Creations textured paint. I've used this paint on all of my projects and
like the finish quite a lot.
Here's the finished
baffles.
Next its time to stain the
veneer. I used two coats of red oak stain since I wanted these to be a
bit darker than my previous projects. I don't think that the second coat
did much. They turned out lighter than any of my other projects. Go
figure.
After the stain dried I
applied three coats of satin polyurethane. Remember to keep the coats as
light as possible to avoid drips or runs. You can sand them out if you
get them but its easier to avoid them in the first place.
Three crossovers completed
and ready for installation.
The installed crossover.
Note the ears I had to route in the tweeter cut-out to accomodate the
terminals
The finished product.
The backs of the finished product.
Done!
Dayton Design
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