"My first impressions were, "Wow, these are fun and very engaging." They really pulled me in to the music. The T70p does not have the angled drivers like the T1 and T5p. They use the same driver platform as the DT770/880/990. The drivers are much closer to your ears and don't have the same 3 dimensional sound as the T1 and T5p. However, don't misinterpret here, there is good depth to the phones but not like the T1 and T5p respectively. I always found with the T1 and T5p that my skull seemed to disappear or was transparent to the sound. I felt like those phones permitted the passage of music through my skull and it was all around my head. The DT70p is more just around the periphery of my skull and my listening space."
The 250 Ohm will most likely sound better just as 250 Ohm DT-880 250 Ohm sound better than the DT-880 32 Ohm.
You could look for a used T1. I was lucky to have jumped in while the T1 was still at the "pre-order" price although I ended up waiting 4 months for Guitar Center to bring in a pair for me, minus $50 for my long wait. Still worth the money and time.