2. misc-audio
  3. 132492-78352

Vibration isolation

Looking for feedback.  I have a very resolving system with Synergistic Research Atmosphere Level 4 IC's and SC and all Elemental Tungsten power cords....McIntosh 601 Monoblocks, MCIntosh C2300 Tube pre, Lumin A-1 streamer with upgraded Kenneth Lau Silver Edition Power Supply all on 3" solid Maple stands / rack.  All this drives a pair of Sonus Faber Guarneri Evolutions mated to a pair of REL G-2 subs.  I have been experimenting with different vibration / isolation control from Herbies soft feet to Rollerblocks to VooDoo Iso Blocks
as well as Synergistic Research MIG 2.0's.  I've discovered that with most of the "bearing" type systems, while I like the pin point accuracy and detail, they make to system so bright that I can't listen to it....and my gear isn't typically associated with "brightness".   The VooDoo Iso Pods are the least bright with the MIG 2.0's falling in between.  The best sounding, detailed but not teeth grinding bright appear to be the Herbies soft feet.  They also seem to produce a soundstage with more body, highly detailed without the ringing brightness.  Results seem really odd to me with much that I've read.  Has anyone else had these sorts of results?  I'm really pretty stunned....my listening room is acoustically treated by GIK, so that's not the issue....would appreciate any feedback.
Thanks!
ptrck887
toddverrone's avatar
toddverrone
840 posts
 
I've not tried the roller bearings yet, but have had great luck using compression springs I buy from Grainger. They usually list the load of the spring, so the math is simple: weight of component/number of springs you want to use = spring load.
The fewer the springs, the better. I also put cork on the bottom of each spring so they don't scratch my rack when I'm moving them around to level the component.
ted_denney's avatar
ted_denney
286 posts
 
Patrick if the MiG 2.0‘s aren’t quite clicking in your system why not have your dealer send you a set or two of the original MiG’s which can sound warmer and more organic in some systems.

Your’s in music,
Ted Denney Lead Designer Synergistic Research
ptrck887 OP
84 posts
 
Thanks Ted,
Very happy former AQ customer here.  Love your cables.  I have Level 4 SC on order with David Weinhart as well as Black box and UEF Panels.  MIG 2.0's are performing great under my PowerCell12....I'll get with David on the MiG's.  Thanks for the heads up!
lak's avatar
Ag insider logo xs@2x
lak
4,640 posts
 
You might consider the Golden Cone DH Cones.
http://www.soundstage.com/revequip/todd13.htm

This might also be of some interest to you: https://forum.audiogon.com/discussions/isolation-feet-cones-for-ps-audio-nuwave-dsd-dac
kennythekey
593 posts
 
My problem was mechanical feedback causing my turntable to oscillate from the addition of subs sitting on a wood suspended floor also shared by my rack. I first tried dealing with the turntable by upgrading the feet to Raven Black Night that have a built-in spring system. This rig is also sitting on top of a Silent Running Audio platform. While there was a slight decrease in the oscillation, I could still reproduce it at higher volume levels.

I wound up adding Townshend Seismic Isolation Bars to the bottoms of my subs and that completely cured the oscillation. I've decided to now try their isolation pods under the rest of my gear starting with my mono blocks. The Townshend products use a spring system as well, but whatever they're doing they seem to do it well.
Kenny
More to discover