Electra Tube Connectors and GR Research Speaker Update Kits

I have dealt with Danny, he is a nice honest guy that truly cares about helping you improve your sound. I have one of his monitors with sonicaps, mills resistors and foil inductors. 

I had a pair of towers sitting in a closet I wanted to sell or try to make them sound better. I sent Danny the crossover and he sent me Sonicaps, Mills, wire and inductors. It did improve the speaker. Though I did end up removing the sonicaps in the tweeter section and put in Clarity Cap CMR’s and Path resistors. That was a large improvement over the sonicap but at a much higher cost but well worth it. Much more clarity and refined no regrets on that one.


You may want to do a little research on tube connectors. I read some people have had issues with them coming unplugged. I  was scared to blow my amp which has happened before but with banana plugs coming loose. I almost tried the tube connectors to replace some Cardas copper post thinking maybe all that copper maybe over kill. I ended up soldering my speaker wire to bare wire coming out of crossover but my crossover is external so easy accces. 

Has anyone compared tube connectors to good quality binding posts and noticed a sonic difference ?

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.  

Thanks for the responses but after looking long and hard at the mods, I'm definitely not doing the Tube connectors or the No Rez.  Updating the caps, and resistors and not altering the speaker's response in any way.  I have three or four different high quality binding posts that I will use.