SCSurfAddict said:I agree with skoora. It’s the music you play that guides you. I’ll bet that everyone has a genre bias. That genre bias will cause you to favor one tube, and its tonal characteristics, over another. I prefer the el34’s in the mark v. I like a tight bass but NO ICEPICK! That desire is driven by my bias to older rock/metal. Therefore: the el34
That's why I use 6CA7 tubes, you get the big tight bass or 6L6, even tighter.... No ice pick highs and thick midrange. Replaced all my EL34s.