Much of what you said about the Dragonfly Red, I think, could be said about the DF Cobalt as well, except from what I understand the Cobalt maybe a bit more refined and a bit more neutral-ish than the red?
I typically listen via The Questyle M15 or DF Cobalt depending on my mood. M15 when I want transparency, and Cobalt when I want a tiny little bit of coloration.
Oh yeah I think to my ears Cobalt is a bit more neutral ish (less bass) but it still retain that forward vocal and sparkly treble. Cobalt has better separation / layering / soundstage but I kept Red because to me Red is more "rich" sounding.
Again depending on taste/preference. I have concluded that I like a somewhat skewed/colored sound LOL.
But ohhhh I've been eyeing M15 so long and always on the fence to pull the trigger. Only thing holding me back is that in comparison to Cobalt/Red, M12's vocal sounded recessed to my taste. I was worried M15 would have similar recessed vocal to M12.
Since you have both M15 and Cobalt, would you say M15's vocal is "forward enough"?
But yeah I imagine it's like:
Colorization -> Neutral
Less Resolution -> Better Resolution
Red -> Cobalt -> M15
What would you say about red Vs ru6 when it comes to male vocals? I'll probably nail it down to either the red, ru6 and the lotoopaws2.
OH yes sorry forgot to reply about that, yes you did ask that in the earlier message.
HMMMMM to be honest I don't remember much about male vocal on RU6, I remember female vocal had a lot of texture. RU6 is very easy to like off the bat but the longer you use it the more you realize it has other flaws. For instance low gain mode, you get nice intimate vocal but a somewhat flat/narrow soundstage. High gain mode it open up and wider soundstage but vocal was too distant for me. After that it has a roll off somewhere in the treble and roll off sub bass. And if you listen to rock then the kick drum feels soft, it's missing that impact.
Again I think it's genre specific if you don't listen to rock maybe it's ok? LOL.
But this is not to say RU6 is bad, RU6 beats EVERY DONGLE I've owned in that R2R texture and imaging. I had a great time gaming with it haha. Also live recording sounds really well with it. Just....... soft bass lol. Also violin (somewhere in the mid) sound a bit less pronounced. If you want that rich string instruments then it's not RU6's strong suit.
Sorry I know I rambling on but I didn't talk much about male vocal. I think it was okay? I'm more of a female vocal guy so it's either RU6's male vocal isn't too memorable or I just didn't pay attention to it.
I hope someone else can chime in on RU6 with male vocal.
Cheers!