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CDP isolation options for improved HF?

Following recent thread on shelf material, I'd appreciate advice on supplentary isolation/vibration devices for my old CDP (Rotel 855). I'm mulling over new digital front end options, but meanwhile want to eliminate HF roughness now evident in my new ref system, without reducing PRAT or resolution. So how do I optimize the use of this CDP until the revolution? Some have suggested that air bladder suspensions compromise timing. Is this often true? Thanks. Ernie
subaruguru
sdcampbell
2,136 posts
 
You might try what I did: place a group of Vibrapods under a piece 1/4" tempered glass, which has also been damped by applying a sheet of DexDamp (a constrained layer damping sheet, similar to DynaMat). DexDamp can be purchased by the sheet (about 12" x 18") from marine supply houses, and sometimes from car audio installers. I got mine from a marine supply place in Seattle called HamiltonJet. They have a good Web site with all sorts of acoustic control materials: www.hamiltonjet.com
bobneill
23 posts
 
Aurios, Aurios, Aurios.
subaruguru OP
1,376 posts
 
Aurios? What are they? Sorry...only remember the homonyms--awfully good with milk! Seriously, where do I find out about them? Thanks.
megasam's avatar
megasam
798 posts
 
Ernie, bearing devices like Aurios MIB and Rollerblocks are perhaps the best isolation tweak for improving resolution without altering tonalty. The downside is they are somewhat expensive and can be sometimes hard to setup especially if you have stiff AC cords. Good review for Aurios MIB at stereotimes.com in the "archives" from a few months ago.
glreno
224 posts
 
I agree with the suggestion of Aurios. I put them under my Electrocompaniet EMC-1, and they improved the detail, soudstaging, and imaging. I've seen then used for as little as $130. per set. I am also trying a Machina Dynamica Nimbus this week (machinadynamica.com). Supposed to be the best isolation table there is. Expensive, though.
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