Hi Marcus, I have not used EAT tubes...but think very highly of the EAT tube dampers which I use on my NOS Amperex US PQ White labels in my CJ GAT. They work exceedingly well. If you use the EAT tubes, please post!
I use original tubes in my GAT. Tried ART tubes too, but they were too noisy. I've heard that EAT tubes are "the way to go" with the GAT so I wondered if someone here has some experience with these tubes. They're very expensive though - 99 EUR fot Selected type and 145 EUR for Diamond...
As far as Cool Dampers are concerned, I used them in my CT5 but in the GAT they are no longer necessary. Original rubber rings work just fine.
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