Figured I'd re-post this here which some might find slightly useful. Mostly confirms what Joker is hearing IMO.
GR01, very pleasant and inoffensive. Nice resolution for the class and decent clarity, better than typical DDs at the price. Decent PRaT but compressed dynamic range makes its really unengaging for me over the long haul. While the phone sounds nice I can't shake the elevator music feeling of the tracks just being a background experience. Toms feel too mushy and soft, must be the lower mid/upper bass 'laid back' character you mentioned.
DBA mkII, tonally half way between the B2 and GR01. This is for those that want the B2/DBA sig but thought it was too treble tipped and need a bit of a rounder, softer midbass. with the same impact. More clarity than the GR01 but behind the B2.
B2, stunning clarity and transparency for the money. Still one of the best in this area I've heard. Tighter midbass makes it seem a bit lighter but extension is the same between B2 and DBA mkII. The amazing clarity just does wonders for making instruments and vocal holographic and real. Still an amazing phone to me if transparency is your thing.
UERM, tonally between the DBA mkII and B2 which is just about as neutral as you can get. Doesn't have the bell like quality of the B2 but overall sounds more natural, better note weight, bass extension, fuller sound and dynamic range of the bunch. Detail everywhere, resolves instruments the other phones didn't know were there. Layers of sound. Precise imaging and space.
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