I tested these while in NYC for CanJam 2018. I went to B&H Photo Video the next day where they were and played them direct from my cell phone. I also tested the Dekoni Blue versions at the CanJam. Similar sound. Warmer with better bass than stock. The Blue were a bit smoother. These have a slight peak in the high mids lower treble (probably 6-8 kHz region). Despite great bass warmth and fullness, good impact, they did roll off in the lowest sub bass (below 30-40 hz). Since I mix and master music, it is always a concern and I've come to expect no planar ever to supply enough quantity and extension in that area. Audeze and Oppo reach down there, but do it at a low quantity. Warm cans like this have quantity above it (60-80 hz) but roll off too soon. It won't be really an issue for most music fans and audiophiles. I'm hyper sensitive to highs, and obsessed with getting full response at 10-20 hz. Yes I can hear that low, tested down to about 5 hz. What is expected with your pair is supremely comfortable, adjustable, good looking, fairly light weight, for planar headphones. From 50 hz to 5 kHz they are like the Blue - full yet not muddy, lifelike, also massively better than the stock. Don't let me discourage you, as I'm an audio engineer just doing his nit picking. An Advanced GT-R prototype planar was the only open or semi open planar that really slammed at 20 hz at CanJam. None of the HiFiMan quite reached. The Audeze got there quietly. You just can't beat a good dynamic for that. Those unsure on these, wait, do not pay a lot more to get it sooner. B&H has it in stock (I think, it was on the floor so you should be able to order it). They are great people, great customer service, and usually its the best prices you can find.
