Tube dampeners on ARC gear ... FREE TWEAK

For better tube damping, try the ones by Herbie.

I also previously found that moving the rings to the uppermost top of each 6H30 to be the best position, and have also removed the rings from the power supply tubes (I have Ref 40 which utilizes 10 6H30 tubes, two of which are in the power supply, one for each channel). I tried herbies tube dampers as well, but the rings were better sounding in my system. I also found that two rings as supplied by ARC were better sounding than a single ring on the tubes in my system.

Oregonpapa, you had mentioned this to me in one of the SR threads. I had forgotten to reply in regard to my results. I want to thank you for your reccomendation. You are 100% correct. It’s just "mo betta". The frequency extensions are enhanced, air and speed increases, along with greater transparency- and that sense of being live also improves. The image is much sharper as well. It is NOT subtle at all. It is not unlike a fuse or cable upgrade in its effectiveness. In fact, when you AB compare, the higher position wins VERY easily. It almost brings the performance of the preamp to a whole new level. After going back to the dampers in the lower positions, you can hear the smearing. It just KILLS the sound. I sure as hell ain’t going back. Good stuff man! Everyone should at least experiment, I doubt anyone would disagree.

audiolover ...

I was just thinking about this last night and wondering if you had tried it.

Isn't it amazing how getting rid of certain micro vibrations can improve the sound of audio equipment? I've made a very serious attempt to attack micro vibrations throughout my entire system starting with my turntable, the electronics, extending through the equipment rack ... all the way to the speakers. The tube ring adjustment is just one example of what can be accomplished by paying attention to micro vibrations. There is so much smear to the sound that we don't know is there ... until we remove it. 

So glad you tried it an got good results. Thanks ...

OP

Honestly I would not have thought that the placement would have been so critical on such a small tube, but it is! I also notice that when the rings are low, there is a fattening of the midbass. At first I thought the bass had decreased from pushing the rings up, but then I realized, it wasn't less, but clearer, more tuneful bass, with better extension.  Listening to Bill Evans  live at the village vanguard portrays this well.  You don't realize that all of the bass frequencies are all compressed, and then, once you raise the dampers up higher on the tube, the bass becomes  linear and extended. Same goes for the treble.  This all adds up to seemingly better data retrieval too. And the dynamics- well, they are enough to startle you at low volume.

 Micro vibrations are evil.  I can only imagine just how much my cheap glass and metal rack is hurting my sound. It's not rigid at all. Because of its "avant garde" construction and the weight of the equipment that resides on it, I have 3'4 inch of lateral movement...ugh. I bought it years ago based on looks and it being cheap. 200 bucks out the door.   I was clueless. My equipment looks good on it, but any audiophile in-the-know would shudder at the sight of it. Oh well, a new one will have to wait. Trying to save for a new home. At least for now, I have some butcher blocks and herbies tender feet to help out. The ARC gear remains on stock feet. Thinking about upgrading the tender feet under the CD player. Suggestions? Looking for even more transparency...