Well, I decided to build a pair of Econo-wave speakers using JBL 2226 15" woofers for the low end and the Ewave top end. I will be using the high sensitivity crossover design. This should give 97db/watt sensitivity when finished.
The enclosures for these will be a curved enclosure made entirely from Baltic Birch. They will be about 4.5 cubic foot each tuned to 38 Hz. These will be 40" high overall and 18" wide in front and curved to 12" in the back. I plan to curve 1/4" Birch for the sides in 3 layers. I would post pics of the drawings for these but they were drawn up in AutoCAD. This will be similar to my Recession Buster speakers as built in this link.
http://www.avsforum.com/avs-vb/showthread.php?t=1132962
First I needed a form in order to make the tops, bottoms, and braces. This was made from MDF for smoother machining. The sides were all coated with a 50/50 mix of Titebond and water to strengthen the sides to reduce wear.
From this form I traced out all of the braces and tops/bottoms from Baltic Birch 3/4" ply. Initially I cut them out with a jigsaw to get the cuts close and then used a flush trim router bit to ensure that all the pieces were cut the same.
4 of these pieces will be used for braces so it was necessary to cut windows out of the braces. Again for these I cut 1 piece up as a template and flush router trimmed the rest of the pieces to match it.
All of the braces were then given a 1/4" roundover in the windows to clean them up.
Using a biscuit joiner the end pieces of the first enclosure were then assembled with only Titebond 2. I recently purchased a biscuit joiner and now use it for everything. It makes for a very strong joint and is very simple to use.
That is all for tonight. Please feel free to add any suggestions or recommendations. More pics will come tomorrow.
The enclosures for these will be a curved enclosure made entirely from Baltic Birch. They will be about 4.5 cubic foot each tuned to 38 Hz. These will be 40" high overall and 18" wide in front and curved to 12" in the back. I plan to curve 1/4" Birch for the sides in 3 layers. I would post pics of the drawings for these but they were drawn up in AutoCAD. This will be similar to my Recession Buster speakers as built in this link.
http://www.avsforum.com/avs-vb/showthread.php?t=1132962
First I needed a form in order to make the tops, bottoms, and braces. This was made from MDF for smoother machining. The sides were all coated with a 50/50 mix of Titebond and water to strengthen the sides to reduce wear.
From this form I traced out all of the braces and tops/bottoms from Baltic Birch 3/4" ply. Initially I cut them out with a jigsaw to get the cuts close and then used a flush trim router bit to ensure that all the pieces were cut the same.
4 of these pieces will be used for braces so it was necessary to cut windows out of the braces. Again for these I cut 1 piece up as a template and flush router trimmed the rest of the pieces to match it.
All of the braces were then given a 1/4" roundover in the windows to clean them up.
Using a biscuit joiner the end pieces of the first enclosure were then assembled with only Titebond 2. I recently purchased a biscuit joiner and now use it for everything. It makes for a very strong joint and is very simple to use.
That is all for tonight. Please feel free to add any suggestions or recommendations. More pics will come tomorrow.
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"ok", but many sounded pretty darn nice. Lots of set up variables in these rooms to fight though. Overall, I was pretty impressed :thmbsp:
