I'm not sure about prices in your country but I'd honestly go with Modi 3 if you're going Schiit amp anyways. If Topping is a lot cheaper, sure go with that.

If your preference is toward Schiit get a Modi 3, keep the Magni 3 and try out either Sonarworks or the free Oratory1990 EQ with APO / Peace GUI. Try that out for a while and take it from there - would be my recommendation :)

You need to contact a moderator and they'll take of that for you.

I definitely agree with you about the midrange and treble hence why I mentioned EQ, but if you're dead set on not using that then I totally understand why you'd wanna exclude this headphone from your list. Best of luck in your search.

I'll be honest, I've never tried PC 360 but HD650 will work just fine for gaming despite what some people claim and they are great for music as well. Imaging is much, much more important than soundstage for gaming and HD650 does a very good job at that. If you want mids you can cross out the...

I'd recommend EQ'd HD800/S although that would not meet your 4th criteria.

In case you didn't know there are two EU Schiit distributors.

DT150 is what you're looking for, except they require an amp.

DT150 fits your description although they do require an amplifier. As it is with most headphones, some people find them comfortable and some don't.

Have you tried HD700?

Have you tried using a different amplifier? Mjolnir 2 could be the cultprit.

There's no stores nearby where you can try out the HD800 and bring your own Jotunheim? Also, since you seem to really want to try it out, it might be worth it to try and hunt down a used HD800 for a good price. That way if it doesn't work out you can resell it with minimal losses and gain some...

Everyone who owns both HD800 and Jotunheim warns about that particular pairing (even modded) so I personally wouldn't risk it unless you're content about possibly reselling it. But then again, what everyone thinks doesn't always correlate to your own experiences. As always it's best to try out...

As long as the cable isn't broken there's no need to throw money out the window although, for some people, that is the side effect of joining this hobby.

What did you dislike about DT770 and what did you like about CAL?