2. amps-preamps
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My Rogue 99 needs better isolation...please help.

I'm currently using ceraballs under a Rogue 99 and found them to better the BDR cones that I was using before. Although the microphonics are less pronounced than the BDR cones, I'm curious if a combination of four cork isolation pads under a maple board used in conjunction with the ceraballs would help with the microphonics. Any suggestions would be much appreciated.
128x128bradz

Showing 3 responses by jeffcott

jeffcott
143 posts
 
Bradz:
My suggestion, and what has pleased me, is to move to air isolation; specifically Townshend Seismic Sink or K-Works IsoBaseK.

I have had wonderful success with the "Sinks" (I have two, one under my transport and the other under my DAC). In the thread: http://forum.audiogon.com/cgi-bin/fr.pl?ddgtl&1105310783&openflup&13&4#13
Rcprince talks in detail about his experience with the IsoBaseK.

In my experience, tube equipment seems to love good isolation.
jeffcott
143 posts
 
Bradz:
Email me off-line, and I will forward you some further information on the IsoBaseK: white paper and such. Both Bigkidz and Rcprince have had success with these units.

Regarding the several suggestions of Herbie's dampers,I am in complete agreement. Just started using them recently myself. Nice product.

Regarding bases with sand; I have not tried this myself so I cannot comment. I do know that I have seen some very well done DIY racks that employed this approach with good success. If you are interested, email me with your address and I will forward info (I think I kept it).

Regading Hebie's feet, I know that Rx8man is getting ready to try some variations of this product. Hopefully he will chime in with his observations.

My recent experience with tubes has been to have seen the eye opening differences (in my system, etc) that good isolation can make. Yes, I believe in tube dampers, but dampers alone (for me) don't come close to what isolation can do for some (not all) tubes. This recent experience has been with the 12AU7 family, but my guess is that the same rules apply to most tube families and the variations in manufacturing.
jeffcott
143 posts
 
One further comment I will make, particularly in response to Talon's remark about using Seismic Sinks under turntables. When I first got a "Sink" my perception was that the most logical position was under my transport. This was nice, no question. When I got my second, I figured I would just "try" it under my DAC. WOW! The sink under the DAC made much more of a change than the sink under the transport. I must say that I would not want to go back to the DAC without a sink.
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