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Old 12th May 2007, 07:47 AM   #1
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Default Mini Computer Speakers

These are some small computer speakers to send with my gf this summer to spain. The drivers are Tangband 1" "Full range" drivers. I have a lot of 3/4" mdf, so I used it for the enclosures and amp shell. Front of amp will probably be 1/8" lexan. Power comes from the ApexJr JBl 12 amp. They're going to be painted with auto paint, maybe blue. Any thoughts, suggestions?

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Old 12th May 2007, 09:09 AM   #2
Nordic is offline Nordic  South Africa
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You will likely have to stuff the inside a little to prevent ringing.. I tried a similar concept once... lol, ended stuffing the hole with toiletpaper... was all I had, but it worked...
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Old 12th May 2007, 09:19 PM   #3
Pano is offline Pano  United States
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Those are going to look great when you get them painted. They look pretty good now. Very solid!

Did you do the roundovers with a router?
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Old 12th May 2007, 10:10 PM   #4
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Quote:
Originally posted by Nordic
You will likely have to stuff the inside a little to prevent ringing.. I tried a similar concept once... lol, ended stuffing the hole with toiletpaper... was all I had, but it worked...
I was planning on lining the sides with adhesive furniture feet felt, but should I add poly too?

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Did you do the roundovers with a router?
Roundovers on the speakers were done on a table shaper, on the amp box I used a router.
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Old 12th May 2007, 10:38 PM   #5
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Stuffing teh enclosure for those is critical. I would experiment a bit. Wire the driver up and listen to music while putting your thumb over the vent, cupping it in your palm, etc. It makes a big difference.

Very cute. I'd like to see them when they're finished.
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Old 13th May 2007, 06:16 AM   #6
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Quote:
Originally posted by augerpro
Stuffing teh enclosure for those is critical. I would experiment a bit. Wire the driver up and listen to music while putting your thumb over the vent, cupping it in your palm, etc. It makes a big difference.

Now I'm confused. The speaker boxes are sealed cubes.

I did find knobs thought. I like them. Everything about this set just says "chunky"

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Old 13th May 2007, 06:23 AM   #7
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I meant do my above comment just to get idea for how much the sound changes on these little speakers.

In the enclosures you built I would not only line the walls but use some stuffing and see what sounds best.

Clear as mud?
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Old 15th May 2007, 04:50 AM   #8
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Well, I reached a stopping point on the face/back. The screw holes came out really good, but I'm not really happy with the back. I would feel the same about the front, but as of now all of my cuts are covered up. I may try to find someone with a small cnc machine since companies charge way too much for custom fabrication. I countersunk the holes and cleaned up the cutouts up to 1500 grit.

My PE order shipped today so the cables should be in sometime this week. In the meantime I will be getting them ready for paint. Cleaning up the sides cut away a good bit of the roundover again, so I may pass over it with the router again or I may just hand snad. There are some spots that could use some bondo as well.

I am having trouble trying to figure out the polarity of the outputs on the amp. I have one that is wired to a 3.5mm plug and another that is just a 2-prong plug. I need to find out, first, how which is which on the plug, and secondly, how the left output is wired to the 3.5 plug (tip, middle, sleeve) so I can wire up the right 3.5 plug that I added. Is there any way to do this with a dmm or a pair of other speakers? Is there a way to create a file of a one-way "pop" so that I can maybe check the phase?

Oh well, time will tell. Here are new pix. I testfit everything and it all seems to fit well.

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Old 15th May 2007, 06:46 AM   #9
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those are too cute... you need to make sure you trim back, open up the back of the driver cutout so that it isn't playing into a tunnel.

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Old 1st August 2007, 07:37 AM   #10
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Well after a (long) while the speakers have finally been painted. I believe the color is called blue onyx and is an oem color for nissans. One had a sizeable bubble on the front, so it's getting knocked down and recleared tomorrow. They definately have their imperfections, but I love the way the paint looks. Plus they're very photogenic.

There are a few runs, mainly along the edges and around the cutouts, but I really like them. The blue matches the silver cones nicely.

Well, onto pics. I'm busy reassembling as we speak, but I won't have them running quite yet as I still need to figure out the polarity of the 3mm cables and outputs.

Well, enough talk, onto pics.. (everyone loves pics)

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