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Electra Tube Connectors and GR Research Speaker Update Kits

  Has anyone here used one of GR Research' update kits for speakers?  My first issue is with the Tube Connectors.  Danny at GR claims them to be a superior product to everything else out their.  I cannot find any data or reviews that bolster his claim about their superiority over a high quality binding post.  The only review that I  found was with a speaker system with the cheapest quality binding posts.  I found the review useless.
  The second point is the price of the parts replacement kit.  I have not priced out the parts ( six Sonic Caps & eight better resistors, "No Rez" damping material ) but was wondering what the  the price difference between purchasing them my self as opposed to the kit.  Parts are simple swaps of the same value with the exception of a resistor on the tweeters which have a slightly lower value to raise its response.
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Showing 1 response by cycline3

cycline3
1 posts
 

I did my B&W 606 S2 with the upgrade kit, as well as adding No-Rez instead of the polyfill. The end result was definitely a significant upgrade. I am very happy with the kit. The little B&Ws are bi-wireable. So, I kept one of the posts and swapped one for the tube connectors.

When you are holding the binding post and spade and holding the tube connector, it just seems so clear it's a better connector. So many less 'connections' in the connection. The binding posts look fancier.

In my case, the tube connectors made a noticeable difference, but my gut is telling me it was getting rid of the low end spades I had on my cables. I have the ability to go back and test again later, but the end result, the kit fixed much of what I criticized about the B&Ws and took them to another level. For ref, this is a desktop setup, I have 803Ds on tube kit in my main system. 

I recommend the GR-R kits and the tube connectors. Definitely worth giving them a chance in my opinion.  

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