Fillmore 25 and 50 Volume difference

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mikeller

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I purchased a new Fillmore 25 in 2019, and picked up a used 50 in 2024. I own both now

For some reason, the 25 is significantly louder and punchier than my 50 is. I swapped out the all the preamp tubes with new unused tubes which made no difference and have tried 4 or 5 sets of 6L6, all used, most probably replaced prematurely. I have the quietest set in the amp.

Could this still be the 6L6's or should I be looking for something else

Thank you in advance
 

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