there is great improvement in the music's transparency, the background is quieter, the detail retrival is much more

Hi James,

I am using your Plixir BDC power supply to replace the switch mode power supply on my QNAP HS-251.  With your power supply, there is great improvement in the music's transparency, the background is quieter, the detail retrival is much more.  The Plixir power supply is a real value for money upgrade.  Money back guarantee!   Rodney.