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In Reply to: RE: Tube Preamp Vibration Control Suggestions? posted by JoshT on June 09, 2017 at 12:20:08
I'm a big fan of vibe control, but it can be hot or miss. Many/most footers and such have a tendency to change the tone and/or perspective. Weather or not you like it will depend. Herbie's tube dampers? They work well. That said, they can either bring you closer to the music or they can suck the life out of it. sometimes, a little microphonics can be a good thing. I've never had good luck with footers, personally preferring platforms of various types, but they aren't cheap. If you don't mind DIY, do a search here for "sandbox". Cheap and effective.
Thanks. For platforms, I'm using the Auralex Iso Tone turntable platform under my Scout, but I had to make an MDF self to put on top because the width of the Auralex was just barely wide enough and I feared I might bump the Scout off it without the extra space. I also use their SubDude II platforms under my REL T7s. I really like the results for the subwoofers and the turntable with those platforms. There were huge improvements for the subs, which are tighter and deeper and better integrated now; with the Scout, the change was a more subtle improvement in clarity.
Since I had extra MDF after cutting the shelf for the Auralex, I had two more sheets cut, glued them together and (after sanding and painting) put them under my Oppo with the hard blue foam HVAC vibration pads under them. I can't say I hear a difference from the Oppo using that, so I might try it under my CJ power amp.
As I understand it, the theoretical difference between platforms and footers is that platforms are great for isolating the component from external vibrations, while footers are supposed to also dampen the vibrations internal to the component itself. For footers, I'll probably experiment a bit with some Herbie's stuff and DIY stuff and report back. Have you tried his stuff?
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I've tried their tender feet and the small dots. They didn't do much for me. OYOH, I really like the top weights, and find them effective on some gear. As for footers Vs. platforms, that really depends on specific types. Seismic sinks (originals) have an air bladder, that mostly isolates gear from external vibrations, but they still work for me despite having a concrete floor. Symposium platforms are better for absorbing and dissipating internal vibrations. I use a combination of the two under my digital source and my turntable. I've found the combo the be extremely effective under tubed gear as well.
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