Agreed. Built-in sound cards are much better than they once were and some motherboards have a focus on decent audio and use above average chips. If you don't need the extra volume provided by the E10's amp then it probably won't sound much better than your onboard sound, if at all, which seems to be the case.
Whether or not the DT880 "needs an amp" is subjective. They get decently loud out of my Galaxy S2 but not loud enough to satisfy my needs. If your onboard sound card gets them loud enough then I guess in your case they don't require an amp.
If you want to findout how much of a difference good amping makes, if any at all, try your 880s out of something more powerful and higher quality than the E10. It is said that the 770/880/990 don't need a whole lot of power but do sound best when given plenty of voltage. I doubt the E10 is swinging much voltage at all.
LOL stupid me, I though it said E11 , LOL I keep typing e10 and thinking it was the E11
Yea excuse me for the retarded post, but that said there is one question answered!
In addition I'm soon to find out how an DT 880 and 990 sound with a AUdio GD amp... pretty sure that bad boy can shove PLENTY of amps into them cans [not to much though] And as always forgive me for the DERPY post lol
Additionally, I just bought a Sound Magic HP100 [and sold my K550] so very soon I will compare the Sound Magic AND K550 TO the dt 880, as you guys know I wanted a closed DT 880, well the K550 was JUST that... but it's got forward mids and BORING treble... so I'm thinking the Sound Magic Hp100, will have a touch more treble and bass than teh k550 will will pair really nice with my soon to be purchased HM 801 and my iBasso Pb1 [which will arrive to me Tuesday] [I think the K550 will get a little too dark out of Dark Source and a Upper Mid boosting warm amp]
That said :D I hope I'm one step closer to my closed dt 880 can ^^