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Cheapish HiFi Bookshelf Speakers Limited Tools NO Aesthetics 
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Three Dimensions

As soon as I had a front and back pair, I added a top and bottom and made it look like a speaker, sort of.

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Sun Jun 09, 2013 11:37 pm
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Terminal Posts

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Wires & Deadening

Time to put some key parts into the box, decent wire and decent sound deadening to absorb backward traveling waves.

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Sun Jun 09, 2013 11:42 pm
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Trouble

One of the nuts came loose, worst possible place. There was some swearing... OK, more than some...

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In Use

Couldn't put it together, so had to stack some weight on it to seal it up, and use it anyway! Muffling the other channel so it didn't spoil the romantic moment. <3

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Sun Jun 09, 2013 11:49 pm
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Insulation And Sides

Adding a second layer of insulation and one of the sides to the first box! In use with weight on top for the second side, again.

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Mon Jun 10, 2013 12:26 am
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Stuffing And Side

Putting the final side on and stuffing it full of white fluffy stuff. Likely near useless, but makes you feel good :-p Placebo affect, right? The first layer, the grey thick stuff, is excellent, though.

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Mon Jun 10, 2013 12:29 am
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Wiring And Sawdust

Soldering the speakers onto the barely-long-enough-on-purpose wires! And the pile of dust ONLY from drilling holes! Several hundred screws all up! ;-) You could park a truck on these...

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Mon Jun 10, 2013 12:31 am
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How I Fixed The Nut

Now it won't f***ing move! :-p

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Mon Jun 10, 2013 12:32 am
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And that's it, folks! I told you the beauty was on the inside. Promised pics now posted! :-) Enjoy!

Unlocking for comments again!

Fred.

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Mon Jun 10, 2013 12:33 am
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Before these speakers, I always scoffed when someone said they only needed some meagre amount of power with their speakers. I've been running these from just 2W RMS per side since I finished them, and although I do want more, I don't really need it. It can already get loud enough to get the wife covering her ears. You can feel the bass in other rooms. They're just that efficient. Awesome.

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Sat Jul 27, 2013 3:33 pm
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Weight of MDF in these two is approx:

((1.480 + 1.352) * 0.3 * 0.019) * 800 kg/m^3 ~= 13kg

Pine looks to be about 500kg/m^3, and I had about 2.4 * 2 * 0.02 * 0.02 in it. So about 1kg

We'll call the stuffing and wires and terminals 1kg all up, too.

The drivers are supposed to be:

Woofers: 1.9kg each
Tweeters: 0.5kg each

Then there was the screws @ approx 0.7kg

So, grand total:

13 + 1 + 1 + 1.9 + 1.9 + 0.5 + 0.5 + 0.7 = 20.5kg or there abouts.

I guess if I Pull the woofers out and pull the cheap stuffing out and fill them full of clothes or something, I can put up to about 8kg more in a bag with them.

Why am I figuring this out? Need to figure out if I can take them on a plane with me, or ship them via sea, or have to throw the carefully constructed boxes away for lack of funds. :-(

Fred.

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DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Thu Aug 01, 2013 9:02 pm
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