This is my first earbud after decades of not using any earbud. I had good opportunities to try several earbuds before getting MX760. Note: Players: iRiver Clix, Creative ZenPlus, iPad. My review MX760:
Build: It's plastic but sturdy enough for long usage and travelling. Not exactly has a bling factor, but what inside that matters.
Comfort: Fits well. Cable with extension helps a lot if you are using small pocketable MP3 (short cable) or iPad (long extension). But the size is not for the small ears. It keeps hurting me after +/- 1-2 hour of listening. I don't use the foam, it hurts me worse.
Bass: It's tight, very tight, no boom. It has average impact, but the tightness gave you the details of all the percussions played in the music. I think it is the most natural sounding earbud in term of bass definition. Not for hip-hop listeners, definitely good for Jazz, Acoustic, some Classic Rock
Mid: Average but always there. Vocals are clear.
Treble: It can give you the details. It does smoothen the treble a bit so less ss and sh from the high end frequency.
Soundstage: This is where the earbud caught me by surprise and very enjoyable. For a small piece of earbud, it has the biggest soundstage I have ever heard. I can clearly tell and locate where the musicians are as presented. Amazing.
With iPad: Use no EQ with Lossless format, it's a great combo
With iRiver Clix: a bit of adjustment on SRS WOW settings to get the most enjoyable sound
With Creative ZenPlus: always use Rock EQ coz other settings sound not very exiting to me, except for WAV or lossless format, then no EQ.
Summary: I think MX760 is at par with Yuin PK1 with easier drive (Yuin needs Amp). It is the best sounding earbuds that I have.