XP SP3 => XX 0.9y-503 => AQVOX Universal USB DAC Driver =>Trends UD-10 => SPDIF => Tweaked Micromega Duetto NOS (TDA1541) => SANSUI AU-999 => DIY Loudspeaker AUDAX 21PA15 with double Bass-Reflex. All wires are Cardas except for the loudspeakers : Fadel Art Products.