Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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Believe what you want

Posted by Jon Risch (B) on January 19, 2004 at 21:32:02

In Reply to: Not too classy, or too believable... posted by Robert H. on January 19, 2004 at 17:06:55:

Why is it that all of your posts regarding Real Traps sound like testimonials?

Ethan made specific claims about the function and operation of the pressure type bass trap, see:
http://www.audioasylum.com/audio/tweaks/messages/94292.html

"Sealing a tube trap "airtight" is futile and a waste of time because the fiberglass itself is porous! "

and
http://www.audioasylum.com/audio/tweaks/messages/94333.html

" > you don't agree with the theory that tube traps are "pressure zone devices"? <

Yes, I do not agree. :-> ) "

also:
" > I'm wondering why tube traps (eg. ASC, Risch DIY, pipe insulation type DIY) all emphasize the need for the trap to be sealed <

Because they don't understand how the devices work."

As I see it, not only is he spreading mis-information re how these bass traps work, he directly attacked me by saying that I did not know what I was talking about. I make my living in acoustics (I design pro sound loudspeaker systems), and take it VERY seriously.

I have explained how the ASC style pressure type bass traps work, see:
http://www.audioasylum.com/audio/tweaks/messages/94648.html
and
http://www.audioasylum.com/audio/tweaks/messages/91658.html
and
http://www.audioasylum.com/audio/tweaks/messages/41861.html

as well as in other posts here at the Tweaker's asylum.
I have also explained how the Super Quick & Dirty traps work.

Ethan has explicitly shown he does not fully understand the acoustic principles at work here, despite having access to the ASC patent and my posts. I am pointing this out, as well as what I see as the fallacy of recommending the use of lots of expensive (705 panels) fiberglass, when it is NOT necessary to do this to achieve very good bass damping and absorption.

[ I suspect you too have some profit to be made - you are in the business as well, and seem to have some turf to defend. ]

No, I do not make any money from any of my DIY designs or info. That includes the DIY acoustics projects, the DIY audio cable designs, the DIY AC power filter and isolation transformer, the DIY component damping sand bags, or for any of the other information I make available. I do have a right to defend my reputation.

It is a fact that Mr. Winer is selling products based on his idea of the best bass trap. So I think that what I said regarding his selling product is certainly worth knowing.

You can call my pointing out the technical errors and defending myself "cheap stuff", or whatever you want to call it, but that does not change the facts regarding the acoustics, and how the resistive pressure style bass traps work, or how effective they are.

Jon Risch

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