I think the Momentum 2.0 does slightly better with isolation than the PM-3, at least with my particular headshape. I've had a young family member tell me (on two occasions) that they can hear my music with the PM-3, but that's in an otherwise silent environment. Also, I think I can hear their...

My week with the PM-3 made me aware I was accepting too little from other portable headphones. I currently own Sennheiser Momentum 2.0s, so here's a quick comparison. The PM-3 greatly outshines my Momentum 2.0 in the category I care about most: natural sound. Yes, the Momentum 2.0 has more bass...

My time with unit 7 is just about up. I was out of town when they arrived, but I'm ready to ship them Monday to the next recipient once Oppo sends me the address. I'm grateful to have had the opportunity to test these wonderful, natural as heck headphones. Thank you, Oppo and those in line...

If you can find a tiny offset screwdriver (L-shaped) with really low clearance between the head and the L-bend, that would work for tightening the screw. I couldn't find one small enough when I owned the WS99. Maybe a hobby shop that sells car/plane/etc models would have one. I also considered...

I'm sensitive to treble, and I'd guess most people wouldn't find the X1 bright. As always, source is key, and I tested the X1 with an iPhone 6 and iPad Air, which to me are bright in general. I tend to listen at a high volume to get the bass pumping. The SHP9500 looks to be really nice and...

I've considered the Phillips SHP9500 also when looking for open headphones, mostly because I get a bit needlessly enthused about 50+ mm drivers. I think I've read they're a bit light on bass and very bright, so I should probably stay away. I found both the Sennheiser HD598 and Fidelio X1 too...

i haven't tried the XB500. I own the XB950BT, but I don't use them much. I find the mids too recessed and bass too boomy. While I have basshead tendencies, I want a bit more clarity across the range than my XB950BT affords. The WS99 is a much cleaner and more musical listen than the XB950BT...

This isn't a critique on the original poster, just a reminder that different sound signatures are for different listeners. I don't hear a muddy bass at all with the Momentum 2.0. I find it detailed and there when it needs to be there. There's no masking of other frequencies with my iPhone 6...

I see where Tyll is coming from, but that mid-bass awkwardness was not much of an issue for me, considering how much they get right. The WS99 is a non-fatiguing, fun listen. A warm easy-to-drive headphone with an overall lush, musical sound. Male vocals in particular are wonderful with these...

Please add me to the PM-3 loaner program list. I agree to the terms.