Upgrade the already excellent sound of your XIAUDIO Formula S headphone amplifier with this external high current power supply. Designed to sit below and mate with the Formula S, the Powerman easily connects with the supplied umbilical cable to replace the internal power source.

Very low noise discrete regulation and large toroidal transformer provides maximum headroom and subtle details from your Formula S amp. 

Greater soundstage depth, increased subtle details and sense of space, and very black backgrounds combine to bring the music that much closer to reality.