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Can anyone tell me the sonic difference between glass and acrylic as equipment rack shelves. I understand acrylic is supposed to be much better, but have no experience on it as a shelf.
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The nature of the shelves influences the sound.
Glass tends to give a harder edge to the sound than acrylic.
This may be a bad thing.
I like 15mm acrylic. Its thick enough to be reasonably rigid and doesn't really resonate.
This gives a drier kind of sound. Cleaner and leaner.
It also looks very good.
I can't comment on the comparison since I've n ever tried glass but I'm using acrylic in a different setup and find it very effective. It's softer than glass and I think it would damp vibration better.I just noticed this link in July's Stereophile and took a look. It shows acrylic shelves in an interesting design using carbon fibre frames. Interesting plots of the effectiveness of the design over standard. lead filled racks and an air suspension system.
For more info, read Michael Framer's sidebar in his review of the Chord integrated amp.
David Aiken
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