So I own both and can tell you both do a great job at delivery soundstage and imaging. Both are also great for music. (The TYGR will sound like it has just a little bit more sound stage due to being open back design) The TYGR 300 will leak sound and the MMX 300 will not. That might be important if you don’t want to disturb the folks around you. Also if you are more into say EDM or HipHop then MMX 300 (w/suggested Dekoni Choice Leather pads) will you give you more thumb when it comes to bass. However that is not to say the TYGR does not have any, it will be just a little bit less.
TYGR 300:
- Open back (leaks sound)
- Good imaging
- Good sound stage (sounds like it has a bit more than the MMX 300, due to being semi-open back)
- No mic
MMX 300:
- Closed back
- Good imaging
- Good sound stage
- More bass (dekoni choice leather pads are great upgrade that bring out a bit more)
- Comes with a really good mic
- Comes with two cables (One short one you can use with a laptop/phone, one for PC with splitter for mic and audio)
- Comes with a case
Both work great with the Schiit Hel I own. I can’t speak really to the JDS Labs El dac/amp. I like the idea of being able to just plug the mic and headphone right into the Schiit Hel just for convience.
I will just say I think sound wise both can be very enjoyable. Just depends on the use case.