Pros: instrument separation, airiness, bass
Cons: nothing...besides the typical lack of comfort
Any Grado fan who hasn't heard this model MUST check it out.
Pros: Near natural and fast presentation, musicality, wooden sound texture.
Cons: Require a decent amp, treble have too much decay.
The woodies have a near neutral presentation, just add a bit warmth to the sound.
Bass: Accurate and fast, the quality is superb.
Mids: A little bit on the warm side, neither too forward nor too distant, but can be a bit bright when not properly amped.
Treble: IMO this is the only weakness of its sound. The treble of the ms-pro is well extended yet has very long decay. For some music genre, especially for classical music with piano, this decay make the music sound delicate and airy, which is a good thing. However, the decay is not perfect for fast music such as pop and rock, the delicate treble also sometimes gives me an illusion that the treble is a little bit roll-off, although it is not the case. I can see that the ms-pro may voiced for classical music, but they are still quite good with playing almost every genre.
Soundstage: not huge but very accurate and round soundstage.
The headphones are very good, although the treble is not of my liking. It is a shame as they could be my go-to headphones. But still, some who prefer more decay on treble may love their sound. Besides that, they are very good headphones.
Easily more detail than the k702 I own, and much more musical, a pleasure to listen to. I'd rate them the same as the Grado RS-1.
Cons: price if you don't know where to look
These are my favorite "Grados". With flats the bass is incredible. The midrange is so lifelike you are taken to the front stage of a concert. I've tried a lot of headphones and these are what I always go to and the price is reasonable. Mine are the i (latest improved) version. I highly recommend these to anyone with a Solid State, Hybrid, or OPT Tube amp.