You have go to diyaudio register write a message to John Curl , ask him nicelyAbsolutely. This is not a room placement issue. This is about an amp with lackluster bass in the extreme (with zero global feedback) as opposed to a phenomenal bass amp (JC1+) although in all fairness we don’t know how much global or local feedback is used in that design.
and you have your global feedback of your JC 1+. He posted the JC 1+Shematics there
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