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
Subaruguru: I do not disagree with any of the suggestions in this tread, but you have to start somewhere. The manner in which I use the Vibrapods is as follows from top to bottom. The CD player with its stock feet resting on a 3/4" thick MDF platform which rests on four Vibrapods. Below the Vibrapods are the shelf in my cabinet. This way there is no need to remove the stock feet on the player and assuming that it was voiced with the stock feet you are not changing this aspect but only isolating the MDF shelf that the player rests on. I have not tried using more (than four) Vibrapods but will experiment with this when I order additional ones for my amplifiers and power supplies. This setup really helped define the bass and smooth the highs of my budget CAL player, without mucking up the overall balance. It was a big improvement. I also use the HT Truthlink IC's that Caterham mentions, but only occasionally when I have a listening session of poorly engineered (sound wise) CD's, other wise I use silver IC's. The Vibrapods were $24.00 shipped and the piece of MDF scrap was $1.00 at the local lumber yard.
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
Aurios? What are they? Sorry...only remember the homonyms--awfully good with milk! Seriously, where do I find out about them? Thanks.
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.