Excellent Tube in all aspects
I purchased a Chinese Preamp that uses 4 tubes and it came with these ones. Then I tried to move up to the Reflector 6H23p-EB / 6922 (Premium) but the result was a poor bass and a lot less detail. I compared back and forth several times and definitely these EHG resulted much better. Warm and Rich sound and Very Open soundstage. It might be the equipment also. I am going to test the Genalex Gold Lion and the Jan Phillips-6922 Low Noise. I am rating it 4 stars to save space for a possible improvement with the other options.