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fosi x

  1. richiesgr

    Background noise when connecting Amp to Pre-amp

    Hi I've received as a gift a turntable from my children. My amps is a Onkyo NR474 not really a musical amps and doesn't have a PHONO input. So I brought a PHONO pre-amp FOSI BOX-X4 with tube I connect the pre-amp to CD or PC input in the amp and connect the turntable to the pre-amp so far so...
    • richiesgr
    • Thread
    • fosi x noise trouble onkyo pre amp
    • Replies: 13
    • Forum: Tube Audio
  2. I

    Ultimate Fosi Audio Box X2 Phono Preamp Mod

    Pedal Pimp Fosi X2 Mod Ever since purchasing my Fosi Audio Box X2 Phono Preamp, I’ve become obsessed with making it the best it can possibly be. After plenty of trial and error and extensive A/B testing, here’s what I’ve settled on: Outside Mods Feet: The stock cheap adhesive plastic feet on...
    • IASTM
    • Thread
    • fosi fosi x modification phono preamp tube rolling
    • Replies: 18
    • Forum: Turntables
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