I recently got a pair of Sennheiser HD 558 headphones and I'm now looking for upgrading my Realtek 887 onboard sound to a dedicated sound card. My primary usage is listening to music and some gaming.
I pinned it down to 2 cards:
1. ASUS Xonar DGX - has 'Dolby Headphone' feature and a headphone amp builtin
2. ASUS Xonar DSX - has no headphone amp but most reviews say the bass and overall sound is better than the DGX
I've read some reviews that stated that the DGX does emphasize the mids and highs more than the bass/lows (in comparison to the DSX), but my HD 558s already have a focus on mids and highs on their own, so I'd prefer the DSX judging from the reviews.
Since the headphones have an impedance of only 50 ohms I'm pondering if the headphone amp of the DGX is actually needed. My Realtek 887 can already drive the HD 558s to a sufficient volume.
Does the headphone amp only affect volume or does the overall sound quality suffer from the lack of a headphone amp when using headphones?
Has anyone had any experience with either the DSX or DGX and comparable headphones?
Edited by M4he - 1/16/14 at 1:57am