Threshold Fet Ten/HL compared to Fet Ten/e or more recents Pass Labs preamps


Has anyone ever compared Threshold Fet Ten/HL (unbalanced) with Thresold Fet Ten/e (balanced) or, better, with newer Pass Labs preamps?
How do they compare, using unbalanced connections, and moving to balanced connections?
Eventually, do the differences depend mainly on the type of connection, or are there substantial differences also using unbalanced connections?
tonix

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