hi Mark
Thanks for all your awesome reviews in the past few years!
With the middle filter that you like, is the Detla better than the Hifiman Re-400?
Seems like the signatures are similar.
Edit: I see that you have referred to the RE-600, but only treble-wise, right?
Cheers.
I own both, and I would say the Deltas are
significantly superior. The re-400s are incredibly overhyped, I must confess.
They have a wonderful midrange, and they have a nice even response across the frequency range. But they are really bass-shy, their soundstage is rather small, and they are not lively on top either. Whoever says that the re-400s are 'just right' in the bass department are utterly fooling themselves or others. They have very little impact, and also a bit rolled off on top. They are ultimately very dull and lifeless, I think.
The Deltas have a lush midrange, much more treble energy, tighter and more impactful bass, a wider soundstage, separation, imaging, a much better build, an intriguing filter system to boot. Their tonality is also much livelier without sounding sibilant or artificial. The re-400s sacrifice everything to its midrange, making it sound neutral, but extremely unnatural to me. It's a no brainer, I think. And this is coming from someone who loved the hd-600 as his full size can, over his Fidelio X1! I also own the vsd3s, which is much less refined than either the re-400s or Deltas, but are also funner than the Hifimans. The Deltas are, however, pretty amazing, and blow them out of the water.