well, if you're an audiophile ( like listening to music & you're a purist ) then get a sound card and hook it to an amp or a receiver... Then hook up your Sennheiser's to it and you can thinker with all the audio settings... Beside getting an amp or a receiver good hi fi speakers are a must... On the other hand if you're a average user you'll be fine with the onboard stuff. I can help with choosing an amp or receiver & speakers....