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Multi-Way Conventional loudspeakers with crossovers

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Old 30th January 2013, 03:38 PM   #21
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Join Date: Jul 2012
Quote:
Originally Posted by bigfishe View Post
Being a body shop owner let me warn you!
Seal the wood with wood rot epoxy sealer then use nason
Ful-pox primer! Careful not to run the primer it's very thin!
This should be a five day process
Bigfishe, thanks for taking time to comment.

I'm not familiar with "wood rot epoxy sealer" who makes this product?

Funny you mention sealer. I've build/restored 4 cars/jeeps so far and I've always used sealer just before the basecoat. I asked the counter guy at the supply house about sealer and he said with the primer I'm using and since I was going to have a couple coats of primer on the entire exterior area of the cabinet that sealer wouldn't be necessary.

I'm using all Chroma line products, which as you know, is a rep above the Nason line, make any difference?

BTW, I'm from the Nashville area, what body shop do you own? Lived there since 1972.
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Old 30th January 2013, 03:51 PM   #22
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Quote:
Originally Posted by JonasKarud View Post
Nice work!

Looking forward to see the end result!
JonasKarud, I appreciate the vote of confidence!

When I decided to build these speakers last month I went online and ordered the drivers and tried ordering the crossover parts. But being over the holidays and the person that deals with individual sales at Jantzen being on holiday it took a little time to complete the order. Then delivery took over another 3 weeks. I have read posts from other speaker builders, some Ekta Grande builders in fact, that have spent months and/or years building a set. Taking over a month to get parts wouldn't be an issue.

They did arrive yesterday, I'll post some pics of the crossover when I get them put together. I didn't realize how big these components would be! I've got to revise my original plan for the speaker base to stuff these. But I didn't want to wait for the parts to arrive before starting. Luckily I still have options.
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Old 31st January 2013, 12:43 AM   #23
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Location: Nashville
Painting cars are one thing! Painting wood totally a pain in the ***!
But if you follow me I'll set you up for a paint job Wilson audio would be proud of!!!! Wood rot sealer is sold online, it's a two part one to one mix that will seal the wood from swelling and shrinking!!coat the box inside and out three or four times! Then you will want to use the ful-pox primer
Tell you what PM me and I'll give you the info it's a bit much type
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Old 31st January 2013, 05:05 AM   #24
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Default Crossover coils and caps

Well the crossover parts from Jenzen finally arrived yesterday. Didn't have much time this afternoon to work on the project. But I did take a few mins to run over to the shop, make a template of the speaker base area I set aside for the crossover, then transfer and cut out some maple ply to heat glue the parts onto.

These coils and caps are a lot larger than I had expected. I included a 6" measure in the pic. The board is 14 1/2" long and roughly 6 1/2" wide (tapers from middle to both front and back). I used the entire space available to keep the coils as far apart as possible. The larger caps and coils are almost 2 1/4" tall.

I've set up the bottom of the cabinet to hold this board with a removable panel for access. No need to ever have to remove any drivers to make changes or experiment.

Any experienced builders have any comments? I set up the crossover with the tweeter in the rear, mid in the middle and the bass in the front. There is abut 3 1/2" space between coils.

image.jpg
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Old 31st January 2013, 06:45 AM   #25
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It's good to leave out of the cabinet the crossover
No matter of the size of the components.
After all it's....Diy
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Old 3rd February 2013, 05:38 PM   #26
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Default Crossover

Quote:
Originally Posted by picowallspeaker View Post
It's good to leave out of the cabinet the crossover
No matter of the size of the components.
After all it's....Diy
Picowallspeaker thanks for commenting.

I figured since I'm a beginner I'll probably make a mistake here and there. I want to limit having to pull drivers in and out to troubleshoot/adjust the crossover. Here is a pic of one complete ready to install and connect. Since it might be a couple weeks before I'm ready to put it in I went ahead and labeled the connection points.

I couldn't quickly find an approved method of terminating/connecting the wax coils, so I wrapped the entire width around a lead and soldered, any comments?

image.jpg
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Old 3rd February 2013, 05:41 PM   #27
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Default Sound deadening

Here is a pic of the 3M (bitumen) sound deadening. 2 layers covers the entire surface area of the cabinets.

image.jpg
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Old 3rd February 2013, 05:46 PM   #28
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Default Sound dampening

Here is a pic of the 1/2" felt sound dampening installed. The entire interior surface area of the cabinets are covered. The felt is attached by commercial grade contact cement applied to both sides. It took me about 10 hours total to install the 3M padding and the 1/2" felt padding. More time than I would have thought, FYI.

image.jpg
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Old 3rd February 2013, 05:52 PM   #29
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Default Front baffle finally installed

After getting the millwork fitted, the wood sealed, and the sound deadening/dampening materials installed I was finally able to install the front baffle. The baffle is installed with glue and clamped.

Now on to the paint prep!

image.jpg
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Old 10th February 2013, 03:05 AM   #30
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Default Crossover fitted into base

The crossover components are 2" think, I've made a pocket in the bottom of the cabinet. Part of the space is in a recess into the bass section, a 3/4" "toe-kick" gives the balance of space. The toe-kick will be wrapped with stainless steel for a little extra accent. Here is a pic, this crossover is huge, takes every bit of space.

image.jpg
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