Good idea geof3. Most of what you hear, read and see is propaganda. Forget about numbers. Nobody has any idea what the real numbers are.
Anyone mentioning numbers is OTL (out to lunch)
Humans, when they don't know what is going on they make stuff up.
Now yabe, as far as tubes go there is nothing special about ARC tubes.
I have been using ARC phono stages for decades. About 12-13 years ago I read about how RAM labs tests their tubes and grades them into three categories, standard, low noise and super low noise. On a lark I ordered a set of super low noise 6922's for a PH 3SE. Boy what a difference. It must have cut the noise levels 10dB maybe more.
Cancel your order and buy a set from here, http://www.tubeaudiostore.com/ You will never buy a tube from anyone else. You have to test 100 tubes to get one Super Low Noise tube.
Mike
Anyone mentioning numbers is OTL (out to lunch)
Humans, when they don't know what is going on they make stuff up.
Now yabe, as far as tubes go there is nothing special about ARC tubes.
I have been using ARC phono stages for decades. About 12-13 years ago I read about how RAM labs tests their tubes and grades them into three categories, standard, low noise and super low noise. On a lark I ordered a set of super low noise 6922's for a PH 3SE. Boy what a difference. It must have cut the noise levels 10dB maybe more.
Cancel your order and buy a set from here, http://www.tubeaudiostore.com/ You will never buy a tube from anyone else. You have to test 100 tubes to get one Super Low Noise tube.
Mike