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Forum: DIY Speakers and Subs   04-29-2017, 12:03 PM
Replies: 7
Views: 125
Posted By augerpro
Glad you figured it out before you started moving...

Glad you figured it out before you started moving the bit out and had the shank snap and cause an injury! I think typical practice is to leave about a 1mm of visible shank from the end of the collet....
Forum: Speakers   04-27-2017, 03:04 PM
Replies: 30
Views: 951
Posted By augerpro
So there is no electrical filtering? Just looked...

So there is no electrical filtering? Just looked at PE and indeed that's how it looks. I agree poor choice. PE's focus seems to be cheap first and everything else second sometimes, while I find most...
Forum: DIY Speakers and Subs   04-27-2017, 02:55 PM
Replies: 177
Views: 4,186
Posted By augerpro
And yet every year at RMAF I find Sanders Sound...

And yet every year at RMAF I find Sanders Sound electrostats at or near top of the heap...
Forum: DIY Speakers and Subs   04-25-2017, 04:09 PM
Replies: 8
Views: 132
Posted By augerpro
Dayton PS95 might be a good candidate

Dayton PS95 might be a good candidate
Forum: Speakers   04-25-2017, 01:58 PM
Replies: 30
Views: 951
Posted By augerpro
Exactly. Sounded like some of the posters above...

Exactly. Sounded like some of the posters above didn't think it had EQ.
Forum: Speakers   04-25-2017, 01:24 PM
Replies: 30
Views: 951
Posted By augerpro
I don't see anything to indicate the crossover in...

I don't see anything to indicate the crossover in these don't EQualize the treble response? Any competently designed line array must have EQ and it doesn't get anymore competent than Keele.
Forum: DIY Speakers and Subs   04-22-2017, 02:54 PM
Replies: 177
Views: 4,186
Posted By augerpro
Mpoes12> that critical or coincident frequency is...

Mpoes12> that critical or coincident frequency is very interesting, I've never read of that phenomenon before. However I don't understand it, heh. I'm assuming the bending wave of the panel is...
Forum: DIY Speakers and Subs   04-22-2017, 08:09 AM
Replies: 16
Views: 532
Posted By augerpro
I'll post the build when done, and it will always...

I'll post the build when done, and it will always be at my Soma Sonus website too.

The builder mitered all the corners so everything is super smooth. More work than I would done I can tell you...
Forum: DIY Speakers and Subs   04-22-2017, 07:29 AM
Replies: 16
Views: 532
Posted By augerpro
How about white carbon fiber:...

How about white carbon fiber: https://www.amazon.com/dp/B00598AP9Y/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=38FAH1QVEAMZS&coliid=IZPG8EHL0KATR
Forum: DIY Speakers and Subs   04-21-2017, 09:55 PM
Replies: 16
Views: 532
Posted By augerpro
I think the guy I partnered with is doing a...

I think the guy I partnered with is doing a veneer with his
Forum: DIY Speakers and Subs   04-21-2017, 06:20 PM
Replies: 16
Views: 532
Posted By augerpro
Not sure yet. Probably Duplicolor Truck Bed...

Not sure yet. Probably Duplicolor Truck Bed Coating.
Forum: DIY Speakers and Subs   04-21-2017, 05:41 PM
Replies: 16
Views: 532
Posted By augerpro
What inspired me to start this project was the...

What inspired me to start this project was the wide dispersion of the BMR. Here are my measurements 0-20-40-60 degrees, basically it behaves like a 30-35mm tweeter:
...
Forum: DIY Speakers and Subs   04-21-2017, 04:18 PM
Replies: 16
Views: 532
Posted By augerpro
Speaker arrived from the builder! Measurements...

Speaker arrived from the builder! Measurements and crossover work begin next week!

http://i139.photobucket.com/albums/q288/augerpro/Uber%20Bar/20170421_170223.jpg...
Forum: DIY Speakers and Subs   04-21-2017, 10:55 AM
Replies: 177
Views: 4,186
Posted By augerpro
So I can see how far the radiated sound is down...

So I can see how far the radiated sound is down from the fundamental. I can wrap my mind around that better than a contextless absorption value.
Forum: DIY Speakers and Subs   04-21-2017, 10:14 AM
Replies: 177
Views: 4,186
Posted By augerpro
Looks like I probably won't be able to partner...

Looks like I probably won't be able to partner with anyone in Denver for this, so I thought I'd throw out what my plan was for anyone that might be able to go through with the experiment.

I would...
Forum: DIY Speakers and Subs   04-19-2017, 02:28 PM
Replies: 177
Views: 4,186
Posted By augerpro
Just want to throw out my offer again to any...

Just want to throw out my offer again to any Denver residents willing to construct the boxes, I can do measurements to wade through some of the possibilities. I'll do frequency response, IR, and...
Forum: DIY Speakers and Subs   04-19-2017, 01:13 PM
Replies: 26
Views: 413
Posted By augerpro
Don't take my word for it, I might be full of...

Don't take my word for it, I might be full of s#@t! Attached is the Harman port study.
Forum: DIY Speakers and Subs   04-19-2017, 09:15 AM
Replies: 26
Views: 413
Posted By augerpro
Thinking about it more, I guess my main objection...

Thinking about it more, I guess my main objection to wavelength being involved is that I don't believe sound of the fundamental tone is travelling through the port as a wave. If I understand...
Forum: DIY Speakers and Subs   04-19-2017, 08:39 AM
Replies: 26
Views: 413
Posted By augerpro
Isn't chuffing caused by eddy currents or...

Isn't chuffing caused by eddy currents or turbulence? If so wouldn't any sharp-ish change in shape be expected to generate at least some eddy currents or turbulence?
Forum: DIY Speakers and Subs   04-19-2017, 07:55 AM
Replies: 26
Views: 413
Posted By augerpro
I don't normally disagree with Bill, but I'm not...

I don't normally disagree with Bill, but I'm not sure the literature like the popular Harman paper on ports supports the idea the wavelengths are too big for relatively small shape changes to have an...
Forum: DIY Speakers and Subs   04-18-2017, 07:14 AM
Replies: 40
Views: 671
Posted By augerpro
I've heard great compression drivers sound just...

I've heard great compression drivers sound just average when they don't match the horn. Do you know what the exit angle of the Radian is?
Forum: DIY Speakers and Subs   04-14-2017, 02:23 AM
Replies: 177
Views: 4,186
Posted By augerpro
My other issue with accelerometers is...

My other issue with accelerometers is interpreting the results. What's audible, or at least an SPL level high enough that it *should* be audible (or not)? Seems to me the only way to do this is for...
Forum: DIY Speakers and Subs   04-14-2017, 01:59 AM
Replies: 177
Views: 4,186
Posted By augerpro
I'm not an AES member so if you can share any...

I'm not an AES member so if you can share any info from the paper that would be great. Ditto on the other studies you are referring too.

How did these other studies differentiate between the sound...
Forum: DIY Speakers and Subs   04-13-2017, 11:25 PM
Replies: 177
Views: 4,186
Posted By augerpro
I've looked at accelerometers recently, but they...

I've looked at accelerometers recently, but they appear to have the same problem they did before, which was very unstable results. Just resticking it to the same place would measure different.

In...
Forum: DIY Speakers and Subs   04-13-2017, 06:44 PM
Replies: 177
Views: 4,186
Posted By augerpro
This is the crux of the current debate that most...

This is the crux of the current debate that most interests me. And most in need of measured verification.
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