No Disc Posted March 14, 2005 Author Share Posted March 14, 2005 GRB, When a speaker is ultra-rigidly coupled to the floor, the floor becomes a sound-radiating surface. This is only the case if it is flexible. Concrete is inflexible. No Disc Quote Link to comment Share on other sites More sharing options...
jwc Posted March 15, 2005 Share Posted March 15, 2005 No Disc, Why did you choose the 3 foot option as opposed to 4 foot. Also, are the feet "attached" to the wood base or just sitting on it? jc Quote Link to comment Share on other sites More sharing options...
No Disc Posted March 15, 2005 Author Share Posted March 15, 2005 Two reasons: One, the footers are sold in sets of 3, and two, with 3 feet instead of 4, there is more coupling pressure per footer and so there better coupling. There are not attatched to the wood base just pressure coupled. The triple points are very sharp and provide a very small contact patch. This is the idea behind using as small contact area as possible, to get more psi in the coupling. Large flat areas just don't have the coupling of smaller sharp points. There are some small tradeoffs. With this there are some very small indents in the bottoms of my Corwalls. You can elect to go with a hemisherical contact patch rather than a sharp point at a sacrifice in sound quality. No Disc ---------------- On 3/15/2005 9:30:37 AM jwcullison wrote: No Disc, Why did you choose the 3 foot option as opposed to 4 foot. Also, are the feet "attached" to the wood base or just sitting on it? jc ---------------- Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted March 15, 2005 Share Posted March 15, 2005 very hard to belive ! you essentially are saying the 1/16" excursion of my Cornwall woofer ... pushing against the mass of AIR pushes that 100 # box back ..... NO NOOOOO ! show me the math .... Quote Link to comment Share on other sites More sharing options...
No Disc Posted March 15, 2005 Author Share Posted March 15, 2005 Cabinet resonance in Cornwall speakers has ben verified by the Belgian Audiophile School and published on the web. Resonance indicates movement. http://www.belgaudio.com/kcmeasurements4.htm No Disc Quote Link to comment Share on other sites More sharing options...
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