A few days after work..

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john
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A few days after work..

Post by john » Wed Jun 29, 2011 11:32 am

...yielded this

Image



Still need a lot of work, But sounds really nice.

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Re: A few days after work..

Post by beagle » Wed Jun 29, 2011 11:37 am

Looks really good John. Very compact. :-)
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Re: A few days after work..

Post by john » Wed Jun 29, 2011 11:39 am

Not as compact as I would have like, but I went with the internal volume that the speakers web site recommends

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Re: A few days after work..

Post by beagle » Wed Jun 29, 2011 12:15 pm

So how does it sound?
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Re: A few days after work..

Post by john » Wed Jun 29, 2011 2:31 pm

It sounds great to my ears, but that is not saying much.
It doesn't have much in the way of higher end tops. Other then that, I think it has a pretty even freq response. rich mids, certainly not mid scooped. and fat lows.
I have to try it out with a band to know what I really think

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Re: A few days after work..

Post by Dan » Thu Jun 30, 2011 5:22 pm

Nice man!

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Re: A few days after work..

Post by john » Mon Mar 19, 2012 1:38 pm

Work was a bit quiet at the moment. So I decided to build a pair of cabs, the one I did in this thread was more of an experiment, and does not look very good... I want to do these ones properly and for them to look, sound and perform well.

I found a great free speaker box designing software called WinISD. It helps you see what the cab will be like with different sizes of box, length of ports etc.

Apart from the front I used quite thin plywood to keep the weight down. I put lots of bracing in it to keep it strong and to prevent the sides from resonating.

Some pics of it so far

Image

I totally failed at putting the vinyl on. I ripped it off in a fit of rage hee hee, but I did learn. When I get the courage to try again I think it will turn out good, fingers crossed.

Image

And With the speakers in

Image

I still have to make a grill frame that will cover the whole black bit
I designed them to not have heaps in the way of low end because deep lows are a bit of a pain on stage and it makes the speaker work harder and make them more likely to blow.

The tuning frequency is 48 Hz

Here is a graph of the lows and low mids. The red line is O dB and the purple is -3 dB
Image

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Re: A few days after work..

Post by joppo » Mon Mar 19, 2012 6:33 pm

They are looking really good John. Now you just need to get your own logo. Here is my vote :wink:
deepdownes.jpg
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Re: A few days after work..

Post by john » Mon Mar 19, 2012 10:16 pm

:lol: Awesome.

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Re: A few days after work..

Post by timi » Tue Mar 20, 2012 9:26 am

What are those holes in the front? :wink:

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Re: A few days after work..

Post by foal30 » Tue Mar 20, 2012 11:38 am

they are for the horns which extenuate the finger popping style John is known for Timi.
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Re: A few days after work..

Post by john » Tue Mar 20, 2012 11:57 am

timi wrote:What are those holes in the front? :wink:
You know, I didn't even consider a sealed cab. Out of interest I just removed the ports from the program to see the comparison

On this gain plot the green line is with ports the Yellow is without ports. You can see why they say sealed has a tighter low end :D

Image

foal30 wrote:they are for the horns which extenuate the finger popping style John is known for Timi.
I am about to slap and pop you :wink:

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Re: A few days after work..

Post by beagle » Wed Mar 21, 2012 11:12 pm

Dang I wish I could build stuff like that. Awesome john 8)
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Re: A few days after work..

Post by timi » Thu Mar 22, 2012 10:54 am

john wrote: Image
Wow, a lot closer than I would have thought, but I guess that means you designed the cab properly.

You can't graph it, but sealed cabs have always felt tighter than any ported cabs I've tried.

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Re: A few days after work..

Post by john » Thu Mar 22, 2012 12:51 pm

Yeah quite close. I put some socks in the ports to see how it sounded. It was quite good, you could definitely hear less low end. I couldn't really turn it up because I was at home. Would be interesting to try both in a band situation. I wonder if plumbing shops sell plugs that seal pipes hmmmm.

Oh and didn't you get live sound to make a cab for you? What did they use for the grill cloth? Do you have any pics?

Does anyone know a good source for grill cloth? I would like something retro looking.

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