Originally Posted by OnlySound
take this with a pinch of salt because i heard ue900 for a moment ue900 seemed neutral to me and mdr 1r(mine's mdr 1rbt) 1rbt sounded more warm but ue900 sounded more defined based on my memory
Mate, you meant the UE9000 right?
As for my 2 cents, I desired and extensively auditioned the 1R MK2, but got the HP50 instead. Here are my findings:
BUILD - 1R > HP50 - Sony has designed a much more elegant, better looking can. The 1R's swiveling earcups dont squeak and creak unlike the HP50s. I also prefer the 1R's cable too, unlike the NADs' flat one, was surprised one day that the plate for my remote buttons got removed. However, NAD has better port for the cable (both cups!) unlike the 1R's loose one. Both are plastic though, so I doubt both are tough.
COMFORT - 1R > HP50 - The 1R is the most comfortable headphone I have ever worn, very lightweight with soft earpads and headband. My earlobes could touch the angled drivers though. Their earcups swivel fuly to the front and bit to the back. I find the NADs earpads are just as soft, but the earcups can only swivel back, making it less ergonomic for my head. NADs clamping pressure is also high, due to freaky-looking headband, eventhough I have worn this for 3 months already.
ISOLATION - HP50 > 1R - The 1R has bass ports that make's these less ideal for noisy environments. The NADs dont have any ports, and can cover my ears enough to seal sound in and out.
BASS - HP50 < 1R - 1R MK2 has improved mid bass to my ears, punchy as well, but sub bass is still rolled off. NAD has excellent bass, which I think is the best in this price range. It is punchy, hits way low, and is very controlled and not bloated.
MIDS - 1R > HP50 - I feel this is 1R's defining sound signature. Mids are very pronounced and very smooth. Female vocals sound sweetest here. NADs however, has airy mids, just to comprehend its Room Feel feature. They are still pronounced, but not as good as 1Rs
HIGHS - HP50 = 1R - I find both cans have equally good, warm highs. Very mellow, relaxing and not piercing.
Soundstage - HP50 = 1R - 1R has good soundstage due to its angled earcups, but sounds kinda diffused, NAD has utilized its Room Feel feature here very well here, making soundstage better than its closed can competitors, yet cannot match open cans
In conclusion, I like both cans. I really enjoy my HP50 for keeps, yet I still wish I can get the 1R, so I can have both :)