My recent ventures into DIY audio...

Re: My recent ventures into DIY audio...

Evan Kirkendall said:
Well, I loved the single 18's so much, I built 4 more. These things really kick ass for being a single 18. Grills get foam backed on Friday, and I'll have some SMAART traces then too.
Evan
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Can you share the dimensions and total weight?
 
Re: My recent ventures into DIY audio...

And, the results are in. The SMAART trace is attached. It was windy today, so the phase traces are a little wonky... The orange trace is raw, the green trace is with HPF/LPF, and the blue trace is with 1 out of band EQ cut. I'm very happy with these, and they look great with the grills foam backed!



Evan
 

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Re: My recent ventures into DIY audio...

Evan Kirkendall said:
And, the results are in. The SMAART trace is attached. It was windy today, so the phase traces are a little wonky... The orange trace is raw, the green trace is with HPF/LPF, and the blue trace is with 1 out of band EQ cut. I'm very happy with these, and they look great with the grills foam backed!



Evan
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As I posted on Evan's Facebook, FPPO should not be used for sub measurements since it has very low resolution down low. Use a fixed FFT instead and apply lots of smoothing if you want. The mess up high won't matter since you're zooming that out anyway.
 
Re: My recent ventures into DIY audio...

Silas Pradetto said:
As I posted on Evan's Facebook, FPPO should not be used for sub measurements since it has very low resolution down low. Use a fixed FFT instead and apply lots of smoothing if you want. The mess up high won't matter since you're zooming that out anyway.
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FPPO has equal resolution in each octave. That is what is stands for, Fixed Point Per Octave. Its resolution is no better, or worse than anywhere else you use FPPO. Whether FPPO's inherent resolution is high enough for your purposes depends a number of things that would distract the point of the thread.

If you do use a fixed FFT, I would suggest using one of at least 16k samples at 48kHz sampling frequency. That will give a frequency resolution of 3Hz.
 
Re: My recent ventures into DIY audio...

Had another free weekend a few weeks ago, so we built 4 more! :)~:)~:smile:

Took all 8 out on a gig this past weekend, and I gotta say, I had plenty of headroom in a 600 cap room! :D~:-D~:grin:

Looking forward to building another 4 soon, and getting them out on some big gigs later this month! These are pretty impressive little boxes. If anyone is ever in the MD area and wants to hear them, let me know!

PS, just some other specs:


Size: 24w x 26h x 30d
Weight: 89lbs






Evan
 

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Re: My recent ventures into DIY audio...

Evan Kirkendall said:
Had another free weekend a few weeks ago, so we built 4 more! :)~:)~:smile:

Took all 8 out on a gig this past weekend, and I gotta say, I had plenty of headroom in a 600 cap room! :D~:-D~:grin:

Looking forward to building another 4 soon, and getting them out on some big gigs later this month! These are pretty impressive little boxes. If anyone is ever in the MD area and wants to hear them, let me know!

PS, just some other specs:


Size: 24w x 26h x 30d
Weight: 89lbs






Evan
Click to expand...


Nice, I'm a firm believer of build your own.
 
Re: My recent ventures into DIY audio...

Whats the sence of a Do it yourself build if you don't say what you did in the first place??? Good chance the products you are using are not something that are deemed,, God like?:?~:-?~:???:
 
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