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In Reply to: RE: Wool Felt Dryer Balls for Component Feet posted by Tuckers on September 20, 2022 at 14:11:25
I bought 6 of the wool dryer balls from Amazon. This knowing if they didn't work as an isolation footer, at least they might help my antiquated dryer. As a quick experiment, I placed three of them under my Denafrips Ares DAC. These were left uncut and in stock form. Conclusion: they probably need to be loaded with more weight to be effective. In addition, cutting them in half may be a good start in the tuning process. In stock form under a 6 lb. DAC, they just seemed to suck the life out of the presentation. On a positive note, they actually have an effect on the sound, but some tweaking is definitely in order to get the positive effect one is looking for. So moving forward, I'll cut two in half to create a set of 4. I'm thinking it might be just as easy to glue the flat cut surface to a furniture glider of some ilk. Just taking a hint from the Ginkgo site on that thought. All in all, just another inexpensive tweak that could have very positive results.
Follow Ups:
I'm using them under a DAC that is 40 pounds, and amps that are about 20 pounds each.
FWIW, I've found a no glue solution for the wool dryer balls. This in the form of small 4oz. plastic jewelry containers and lids.($7-$8 for 6 at Amazon of course) These are round containers roughly 2" high with a diameter a shade under 3". I've made up two sets of three. For the first set, I was able to stuff an entire wool ball in the container itself. This leaves roughly 3/4" of the wool ball exposed above the top of the container. When compressed with a reasonable amount of weight, 1/2" of the ball is still above the top edge of the container. The second set simply uses the container lids. This to accept and contain the flat surface of the cut wool balls. With all this said, the true audio testing and results have yet to start.
I've thought about this, but was leaning more toward some hardwood coasters (all kinds of fairly inexpensive ones made from tone woods found with a search), as those are probably better than a thin piece of plastic.
Personally, I think adding a layer of anything to the top (or bottom) of a footer will likely change the acoustic results. I even think glue might affect this as well. So if I was designing with these I'd try many different types of both to get the best result.
Please give them a try without the plastic too, and see if you hear a difference!
The 4 oz. plastic containers actually have metal lids. These amount to nothing more than a small one piece fruit jar lid. Depth is roughly 1/2" with a 2 5/8" diameter... so plenty to contain half of a wool ball plus giving a decent finished look. My gut feeling is that the density of the wool ball alone will dominate any effect. I doubt if a difference could be heard regardless of which lid, coaster or other containment device is used. When using the three half wool balls with the metal lids mentioned above, their effect seems to match if not better the positive effect I've gotten from a trio of IsoAcoustics Indigos. FYI, both sets have been tested under a 20+ lb. LM 502 DAC. Now with that said, it's still early in the mission, so only time will tell if I feel the same way after long term listening.
How do you like them now that you've had them a while?
Good to hear! I am still liking mine.
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