Permalloy passive preamp 10Hz-20KHz ±0.1dB no soldering with sony zx300A

  1. kzzstzst
    In normal market, passive preamp is ±1dB. But this pairs are ±0.1dB.[​IMG]

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    use aiwa hp v99 vol 115

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    use balanced TY Hi-Z 650 ohm vol 100 ( DIY mods the 2.5mm plug , the first 2.5mm photo in ASIA with TY 650 ohm )

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    use TY 150 ohm Hatsune GREEN vol 110

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    use K701 Kimber kable mods ver vol 120 nax

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    use 3Hz mdr-x10 Kimber kable

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    use mdr-z7 Kimber kable

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    use litte bear b4 op-amp hdam99999sq

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    use zishan z2 muse02 + Walnut F1 balanced out + permalloy + litte bear b4

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