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In Reply to: RE: Diversitech MP4-E EVA Anti-Vibration Pad is #1 posted by Duster on February 01, 2021 at 02:35:21
maybe you had better elaborate on "better options to choose from for audio purposes". Many of these devices are made from materials used in industries using them for other reasons, then filter down to the lowly $$audio industry when the application applies.
If the ones spoken of are made for superior isolation in some other use, they just might be superior. And of course, all mileages vary with each individual user. I like the ones with the cork in the middle. Some audio components are relatively heavy, and stacked atop one another can add up on a rack to the floor. How much does your rack or speakers weigh?
Your statement is too vague and 'all knowing'. When I had 2 salesmen walk in to my store over 30 years ago and demo 'moongel' drumhead pads it was the first time I ever saw anything like it. About 1" square they were like magic on absorbing harmonic overtones without killing the fundamental frequency of the drumhead and the sustain. I passed it on to Stereophile for uses in audio. Sometimes I use the material on my headshells. Now you can buy 'shoe sole inserts' made of the same material for a cushy ride in any shoe you put them in.
How many times have we seen a familiar 'thing' being sold for audio purposes at 10/20x the price of something some might have seen before somewhere else? Audiophiles are a silly bunch.
Follow Ups:
Vibration control for audio purposes is not based on mitigation of gross resonances and vibration, with no attention paid to how it may affect the resonant frequencies of the enclosure, including adding resonances of their own. It's a different animal to design an audiophile-quality footer which depends on how the footer actually affects the presentation of an audio system. Some of the most aggressive vibration control devices not intended for audio applications actually sound quite poor when placed under an audio component or loudspeaker. It might help to avoid a CD player from skipping when listened to in a vibration prone factory environment, but the music would simply sound better with the stock feet positioned under the unit instead.
Testing if done properly is rarely, if ever, done only in a factory environment. Have you ever heard of that being the only test requirement? If it's a good factory it is done in a fabricated listening room to simulate an environment of possible placement to uncover problems if any. Maybe even a real room in a real house with rooms of concrete and wood flooring. It depends on cost and there's a price for everything. I would hope a company uses more than numbers and scopes for manufacture.
A component is usually manufactured with feet that are sufficient for placement and the rest is left up to owners and their environment which varies. The usual feet supplied are bare bones most of the time because it saves production costs. It usually ends up an aftermarket quest for many users, sometimes with good results and sometimes not.
Placing a turntable 'as is' near speakers or between them with no care for placement or attempts for any isolation is inviting trouble. Most here understand that. Inherently poor design will show up sooner or later in a released component and some of these audio fixes are band aids, so we can agree. I still stand on my previous reply because there are sound reasons to seek improvement for components. Humans are rarely ever satisfied long term. Some mods have little merit like titanium screws in CF wall plates. Putting some of those pads under components and racks and speakers can have good reasoning and results.
So please take this lightly and carry on.
I'm fine with the discussion, it's why this forum exists. Testing of industrial footers such as those in question has nothing to do with vibration control for audio purposes. Footers such as those are tested under industrial-duty type to general purpose homeowner devices, as previously mentioned. Placing a hardcore vibration control footer designed for a completely different application, especially under a delicate audio component with very different criteria to be met by the notion of vibration control, does not provide audiophile-quality vibration/resonance control. There is nothing more detrimental within the realm of audio than overdoing something that does not need to be fixed in the first place. Choose footers designed for audio components, with experienced audio experts behind the wheel, not rubber thingies that function properly when placed under a noisily wobbling washing machine as intended.
A perfect example of an industrial manufacturer entering the audiophile marketplace is the Vibrapod. The company found that a vinyl product they manufactured stopped the CD player in the factory from skipping when industrial equipment rattled the audio gear located in an office. The Vibrapod may work wonders in that regard, but it is one of the most colored sounding vibration control footers I've ever experienced.
Cheers, Duster
Some aren't? Which ones are "experienced audio experts" and how did you determine that?
To design and manufacture a footer that is purposed for an audio application means their efforts have a particular sound in mind or effects that are beneficial when placed under an audio component or loudspeaker. The type of footer in question was designed and manufactured without attention paid to an audio presentation in the process, it is intended for a completely different type of application. Unless one really believes the designers and manufacturer evaluated the product when placed under various audio components and wanted it to sound very good when placed there, the product is optimized for industrial type equipment only. If it sounds good when placed under audio gear, it's a coincidence not intended for the use of the product.
n/t
berate is 8 and benign is 9
nt
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