I'd offer the First Sound/Presence audio Ultimate Paramount line stage. This unit has a bigger power supply than most amps - quiet & tight. And parts quality that defys reason. Sound that must be heard to be believed!
Based on the two follow-ups given so far, I've got to make a clarification : My question is not about the best line stage, it's about the best line stage TUBE i.e. brand name 6922s,6072s,6DJ8s,7308s,etc.
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