1. kzzstzst

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

    In normal market, passive preamp is ±1dB. But this pairs are ±0.1dB. use aiwa hp v99 vol 115 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 ) use TY 150 ohm Hatsune GREEN vol 110 use K701 Kimber kable mods ver...
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