Right now I am using an onboard realtek alc885 chipset (hooked up to a Rega Brio 3 amp), which surprisingly has great signal-to-noise ratio. My motherboard also uses tantalum capacitors, which I think improves the sound quality. The sound is clear and clean, but is a bit bright for my liking. Should I get an external tube DAC or a Hi-FI soundcard like the Asus Essence? Which would produce a warmer sound?