If you're listening to output transformers and resistor-based gain controls,, whatever toobs you use, top KR or WE, you're listening to more or less.. distortion, X 2! Autoformer (Intact Audio), or TVC Django or LED (Tortuga), for non-resistor gain and... no output transformers, (Transcendent Sound etc), is the way to go.
2019 300B tubes that are worth the money?
OK, I'm not a super rich audiophile that has unlimited money to blow. I have a pair of Cary 300 CAD300-SE monoblocks i bought used that currently have a pair of TJ/Full music tubes in them. I am, overall, very happy with the sound. So does anyone have a strong opinion that any of the $1000 a pair current production 300b tubes are really worth the money over my $300 pair? Would my money be better spend on a needle upgrade for my turntable? :-)