I owned K701, DT880 and still have SA5000.
First of all, ditch K701. The sibilance and wearting comfort is simply no acceptable.
DT880 250ohm 2005 edition is very good, except a little too light on bass impact.
SA5000 -- best of the bunch. I have two of them with one modded heavily. It is my day in day out default can to go to. Awesome in every aspects. Bettered my HD800 in bass impact but less soundstage and a tad bit of transparency.
Conclusion: go with SA5000.
EDIT:
That is, IMHO, a tall order since SA5000 has been competing with HE90, HE60, Omega II, R10, L3000, HD800, PS-1, PS-1000, W5000, AD2000, K701, HD650, HD600, DT880, DT990, RS-1, ......... cans that I've owned or still own.
First of all, ditch K701. The sibilance and wearting comfort is simply no acceptable.
DT880 250ohm 2005 edition is very good, except a little too light on bass impact.
SA5000 -- best of the bunch. I have two of them with one modded heavily. It is my day in day out default can to go to. Awesome in every aspects. Bettered my HD800 in bass impact but less soundstage and a tad bit of transparency.
Conclusion: go with SA5000.
EDIT:
That is, IMHO, a tall order since SA5000 has been competing with HE90, HE60, Omega II, R10, L3000, HD800, PS-1, PS-1000, W5000, AD2000, K701, HD650, HD600, DT880, DT990, RS-1, ......... cans that I've owned or still own.






This all depends on your tastes, you want a brighter phone, SA5000. With the Beyerdyamic, try getting the 600ohm model if you can't get the older one that bubba mentioned.





