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Multi-Way Conventional loudspeakers with crossovers

Sorbothane feet for audio
Sorbothane feet for audio
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Old 15th June 2019, 01:34 PM   #11
Cousin Billy is offline Cousin Billy  Canada
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Join Date: Nov 2008
Experimentation is the key;

Tube pre-amp: When inserted under the 'tube' box, gave too much body to the presentation. Under the power supply, bingo.

Tube amplifier: No. Syrup would be a good description.

Turntable: At loud volumes, if there's a distortion you can't put your finger on, it may be a reflection from the platter. Sorbothane gets rid of the distortion, but it smooth's things out too much. I have the Stein perfect interface over the sorbothane. This combo was better than the Stein by itself.

Speakers: I don't like it under my woofers, but I do love it under my monitors.

These are my experiences, you need to experiment for yourself.
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Old 15th June 2019, 03:17 PM   #12
martyh is offline martyh  United States
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Join Date: Feb 2004
Location: Wisconsin
Fabreeka FAB-EPM is a similar product to Sylomer. The effectiveness of any of these materials including Sorbothane is going to be dependent on loading. Think of them all as nearly critically damped springs and you will be on the right track. Be sure to use the foams in the specified static loading range and load all of the isolators under one piece of equipment to the same pressure per square inch.
The big advantage materials like these have over prefabricated isolators is the ability to tune them exactly. All of the manufactures publish data that you can use to calculate the natural frequency given the loading. Select a material/thickness/size/shape to tune the spring mass to at least sqrt 2 below the lowest forcing frequency and you will have attenuation. I don’t think you will hear any difference between the materials given a specific tuning frequency.
The Fabreeka material is easy to use, you can cut it with a band saw and spray adhesive bonds really well. I make isolators by gluing the material between aluminum or phenolic plates and they work well. I assume the Sylomer can be used in a similar way. The big disadvantage to fabreeka is that you need to buy it in large sheets or find scrap. Not sure about the Sylomer but Sorbothane is for sure available in small quantities.
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Old 18th June 2019, 01:25 PM   #13
Best Hi End is offline Best Hi End
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Join Date: Mar 2018
Danny,have you got any idea how much will cost me 4 pads sr110 of 5*5 for each speaker(eventually it's about 200Lb and not 220Lb) and where can get it at the best possible rate ?
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Old 19th June 2019, 12:03 PM   #14
danny_66 is offline danny_66  Belgium
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Location: Lierde
I've bought them in stripes from 5cm wide and a few meters long, it's easy to cut it.
It was from a local industry contractor.
Best to check the distributor list for Sylomer from Getzner.
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Old 19th June 2019, 12:31 PM   #15
twinter is offline twinter  United States
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Hey, Danny 66, thanks for the heads up on Sylomer. Great damping materials. Sylomer has a range of products for different industrial applications, with mechanical loss factors form 0.1 to 0.6 (very high damping). Several years ago I searched the internet for about several months to understand the basics of structural damping. I don't recall Sylomer being mentioned, so is it fairly new? Several of the damping material websites also appear to be updated too with the material. Engineering progress moves forward.
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