A brief follow up on the DT770pro 250ohm and how they compared to my T1 using the Bottlehead Crack amp
For the £109 for a new pair of the net I have been pleasantly surprised as to the build quality and sonics of these closed back cans. Straight out of the box they sounded very treble accentuated and the bass was loose and bloomy. After approximately 20-40hrs the treble has toned down considerably and the bass has tightened up they are now giving a more even presentation.
The DT770 and T1 do share a similar beyer house sound but will come as no real surprise the T1 significantly outclasses them in abilities.
These were the main differences with the T1 having,
A more even presentation and a more present and believable midrange.
A airier and more even handed presentation.
A smoother treble extension.
Much better resolution and separation (DT770 has some merging in its presentation. The T1 can often clearly define backing singers as individuals with each singer given their own details ie a tambourine etc while with the DT770 the same singers tend to be more of a one).
Tighter faster and more controlled bass (but not as much actual bass impact as the DT770 which is fun with funk).
Much better sound staging.
All in all I am pretty happy with the DT770 they have filled the roll I required of them quiet admirably, they seal particularly well and while not as refined as the T1 I think offer really good value and are enjoyable to listen with much preferring them to a pair of AKG Q 701 owned earlier in the year.