I am currently using pm-3 with chord mojo, I'm looking to upgrade to ether c, my music preference is metal first then other genres second, does ether c do great with metal(metallica, lamb of god, disturbed, evanescence, within temptation, etc)?
I am atm thinking twice bout buying the ether c since I don't hv time to audition ether c(I will soon) and also whether it will sound a lot better then the pm-3 mojo combo to justify the price(I also need to pay tax, it's killing me lol >_<)
I wish that I could truly answer this question, but rock is the last genre of music that I listen to. Occasionally I'll listen to some rock: Perfect Circe, Steven Wilson, Alice in Chains, Nirvana, Pink Floyd, Smashing Pumpkins etc.
That being said, I have both headphones here. I feel confident stating that the Ether C is a substantial improvement across the entire spectrum. And it's not subtle.
PM-3:
*good build quality
*pretty neutral and balanced overall signature
*highs are rolled off a touch/darker (this may be a plus for rock)
*bass response is pretty good but someone "one note" for a planar
*good mids with decent imaging
*staging is somewhat constricted, vocals and instruments can "blend" into a somewhat small sound stage
Ether C:
*build quality is top shelf and one of the best I've seen
*also pretty neutral signature with more linear bass response-can go much deeper and have better texture than pm-3
*treble is not as dark as pm-3, but I find it has good extension but is presented with refinement and is never harsh or etchy
*very good mids with much better tonal accuracy than most any closed headphone I've listened to
*staging and imaging are the best I've heard from a closed headphone, period. There is a very natural sound stage with good separation of vocals and instruments
I'm confident recommended the Ether C as a natural upgrade over the pm-3. I just don't listen to the same music that you do, so I can't compare specific tracks for unfamiliar music. Lastly, the sound of the pm-3 is "locked in," where the pads are glued down and are not user replaceable. Ether C has several ways to tune the sound to your liking without knowing anything about modding and pads are easily replaced. I like to keep the pm-3 around because it's good as a portable planar and is driven well from my HTC phone.
Feel free to ask specific questions if you want.