Anyone have an older JP2C to compare to newer built with the Shumacker transformers?

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Well-known member
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Feb 22, 2013
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North Carolina
I am just asking out of curiosity. How different does the 2021-2024 JP2Cs sound compared to the 2016-2020 model years that have different transformers?

If it is that different in character, perhaps the STR443 tubes are the way to go. The amps that predate the transformer manufacturer change may be much better with the STR445 or STR448 power tubes. I can also claim the STR415 are gold in the JP2C (2016). Not sure how to relate to any changes made after the first production runs.

It seems the JP2C trend has sort of dropped off much like the activity in the Rectifier section. Mark V still going.

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