SET OF 8 RINGS PER PACKAGE 

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ONE SET OF EIGHT HEAVY DUTY HIGH MASS/ HIGH HEAT VACUUM TUBE DAMPERS.    If you need more than eight dampers, just order for more than one set. 

 

These dampers are designed to fit 9 pin vacuum tubes.  Most audiophiles and musicians use two dampers on each tube.  These vacuum tube dampers are constructed of aerospace quality silicone with a temperature rating of over 400 degrees F.

 

So this set of eight dampers will improve the sound of four tubes if you use two dampers per tube as recommended, or improve the sound of eight tubes if you would like to try one per tube.  This is one of the easiest, lowest cost ways available to improve the sound of your system.

 

The use of these vibration dampers is especially important for audiophiles as the small vibrations in the listening room can adversely affect the quality of the sound from the system.  These dampers are also very important for musicians because the levels of vibration in your amps while performing, are even greater than in audiophile amps.

 

These heavy-duty high density dampers will fit the following and other similar size 9 pin vacuum tubes such as:  12AX7/ECC83, 12AU7/ECC82, 12AT7/ECC81, EF86, 12BH7, 12BY7, EL84/6BQ5, 6922, 7199, 5687, 6CG7/6FQ7, 6MB8/ECL82, etc.

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  Good quality damper, will keep buying them.
  
  reviewed by: Michael C

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  Worked great to silence my rattling POWER amp tubes (EL84) in my Peavey Classic 30. Listing says designed for pre-amp tubes but can confirm they fit on the EL84 perfectly.
  
  reviewed by: Tyler

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  Let the audiophiles spend all the money on esoteric tube dampeners. These high-temp o-rings do what you need at a realistic price point.
  
  reviewed by: Lyle Caldwell

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  Superb tweak at an honest price. It let's you hear the nuances better, reduces the noise floor and helps the music flow freely. All this for 0.50 bucks. Please buy them before tube depot decides to charge 50 bucks and brand it with some fancy name and says that it's made in Pluto.
  
  reviewed by: SB

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  I can't believe how much these improved the clarity in my high gain tube amp. Especially at this price.
  
  reviewed by: James A.

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  There's nothing magical about a polymer ring (just as there are no measurable "dark forces' that require $$$ ceramic speaker cable isolation devices). But LONG PLATE, high-current JJ 12AU7 pre-amp tubes really are susceptible to induced microphonics, especially when the TubeCube 7 amps (I use multiple to power an array) are being assaulted with high-energy sound. These little rings do the job without fanfare or hype. Highly recommended.
  
  reviewed by: Karl