Pros: Sound, Build Quality
Cons: None so far!
Just got my PSB M4U 2 headphones after a dilligent search for the right cans for my lifestyle. I am a "limited audiophile". Limited since my main genre is classic rock from the 60's and 70's. If you need a broader range of music style to consider, then please press on. This review may not be that helpful for you. I am also a frequent traveller, so the noise cancelling consideration is important for me. I originally bought some AKG K495NC's, which were returned due to discomfort on the ears during long plane trips, and also considered and tried out the Sennheiser PXC 450's, which were a little too large for convenient carrying in my travel bag, and also the speakers actually were touching my ears causing no small amount of discomfort. Then my PSB's arrived! I have had them on 4 long plane trips (over 3 hours each), and as I write this article I am listening to Pink Floyd's "Animals", and am euphoric over the quality of the sounds. Perfect bass for my taste (but hip-hop addicts may need a little more), and all the elements of the mids and highs are discernable. I am happy as a lark! The noise cancelling has an extremely low, almost undetectable hum of quiet noise, which is a necessity on phones of this type. The QC 15's from Bose may be a little better at noise cancelling (seems about the same to me), but the quality of sound blows Bose away. A friend has a set of Grado's (not sure the model, but PS1000 sounds familiar), and I think these babies sound better. With the noise cancelling off and the amp activated (internal amp included), they are as good as set of cans as I've heard in awhile, and that's saying a lot! The build quality is phenominal, but they may look a little strange on your head. PSB chose functionality over style with these cans, so they have a larger wrap-around quality with pivoting earpieces (360 degrees) for a very good fit. I took the redeye back from Vegas a couple of weeks back, and slept like a baby, which I usually do anyway. The point is I had no discomfort or extra heat from my headphones. Kind of like football refs - if you don't notice them then they are pretty good. All in all, I have no complaints, and look forward to many years of happy listening with my new PSB M4U 2's!