July 2023 Tone Quest Report Review for the “Vibe” Amplifier.



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February 2007 Tone Quest Report Review on the “Golden Ratio” Amplifier

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January 2007 Vintage Guitar Magazine Review on the “Golden Ratio” Amplifier

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August 2007 Vintage Guitar Magazine Builder’s Profile

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Links to JCA Circuits Threads at The Gear Page
https://www.thegearpage.net/board/index.php?threads/jca-circuits-golden-ratio-1-6.2529034
https://www.thegearpage.net/board/index.php?threads/price-drop-jca-circuits-golden-ratio-1-6.2156436