check BUSH BIN (huge hog)

7 years 5 months ago #19501 by Dref
Replied by Dref on topic Re: BUSH BIN (huge hog)
Hi RS

Nice to see that you are getting started with the measurements.
Could you describe your measurement setup and procedure in detail?
How long were the distance from the nearest object to the cab being measured?
What type of ground/floor was the speaker placed on during the measurement.
How was the RTA mic set up, and what model was used?

You really need to get started making proper sine sweeps. ;) Have you had a look at REW?

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7 years 5 months ago #19509 by Reality Sound
Replied by Reality Sound on topic Re: BUSH BIN (huge hog)
Ahhh, well the mic was 2 M from the cab, the mic was lying on the ground. RTA mic is a Behringer ECM8000. I used REW. Measurement were taken outside on concrete floor. Minor surroundingJust set a voltage at 50hz (2.75ish) then took spl measurements in 5hz intervals from 30- 125.
Looking to source a decent voltmeter. I am not confident in my ability to take accurate sine sweep measurements. maybe you can explain it to me over on the 'measuring subs' thread.
Thanks,

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7 years 5 months ago #19516 by Dref
Replied by Dref on topic Re: BUSH BIN (huge hog)
Well, in REW you just press the button "Measure" and then "Start measurement".
Many times easier and better resolution than manually during 5Hz interval measurements. ;)

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7 years 5 months ago #19517 by Reality Sound
Replied by Reality Sound on topic Re: BUSH BIN (huge hog)
I just quickly downloaded REW, haven't really had the time to poke with it. Bare with me.....

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7 years 5 months ago #19518 by Dref
Replied by Dref on topic Re: BUSH BIN (huge hog)
That was quick :)

You can try to play with it by measuring you pc speakers or something like that. It is very easy to use.

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7 years 5 months ago #19527 by mini-mad
Replied by mini-mad on topic Re: BUSH BIN (huge hog)
i thought the monster hog would of turned out alot better myself.... maybe it just need some small refinements.

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7 years 5 months ago #19528 by Reality Sound
Replied by Reality Sound on topic Re: BUSH BIN (huge hog)
Thought maybe the 'tapped horn side' of the design got thrown off a bit. There is one alteration I want to try before I abandon the project. We will see......

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7 years 5 months ago #19529 by mini-mad
Replied by mini-mad on topic Re: BUSH BIN (huge hog)
... youv gotten this far dont abandon it yet.... im really loving the read.

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7 years 5 months ago #19530 by Reality Sound
Replied by Reality Sound on topic Re: BUSH BIN (huge hog)
Well there is only so much alterations one can do without completely building another cab, and I just can't be bothered right now. Stipe was assisting me initially, but has been 'off grid' now for months. So I'm moving on with other projects for now. Don't get me wrong, this cab is loud and goes low with ease, but if its barely an improvement over the original then whats the point? :S

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7 years 5 months ago #19531 by Dref
Replied by Dref on topic Re: BUSH BIN (huge hog)
I don't think you should be making definite conclusions before you are able to make more refined measurements.

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