Coming from a fellow Metalhead!   One thing I have learnt from my many headphones and setups, is too much bass ruins the track (imo)!    For me, out of those two, I would go for the Momentum 2.0 or the V-Moda XS like mentioned above.   The V-Moda M-100 are just too bassy for me, and in my...

Out of that list, I'd go for the Fiio X7.   No need for the DP-X1 unless you really need the dual DAC & AMP chips plus the balanced output.   I would also look at Pioneer XDP-100R, basically the little brother to the DP-X1.

No worries, glad we could help!   Good luck :)

Don't forget that if we listen to something for long enough we tend to think that it sounds best and it isn't until we listen to something that is better, that we realise how better sound can be.   So yeah I would say give it some time for you to get used to the sound.   Honestly if you have...

Sometimes old amps have the ability to add remote IR units to them via a port on the back but unfortunately your receiver does not have this ability and most likely, as you've said, due to its age.   My only solution is do get a new receiver with an IR blaster built into the unit and an...

No problem :)   Glad I could help.

As long as the dongle has Bluetooth 4.0 or higher than you should be fine.    I would simply go for the one with the best reviews + highest bluetooth standard + Perhaps have AptX onboard as well.

Personally, I don't really believe a "burn-in" effects the sound signature or quality.   For me I found the Fidue A83 highs to be harsh initially and to this day they are still as harsh as they were when I first heard them but I have personally become use to the harsh/sparkly highs and like it...

This has been fixed by firmware update.

Other than that, there is not much I can say but try and look for IEM's with a warm sound signature.   Shure's SE535 comes to mind in terms of a warm/lush sound signature.

Ah man! Thought you would've had a good time with the Dunu DN-2000J, mainly because I thought the DN-2000J would've had a slightly less sparkly highs compared to the Fidue A83 which has some very sparkly highs which kinda adds to the great detail that I like.   The hiss is annoying, the output...

I mean you can come and test it here if you want :D   But yeah I managed to put my XDP-100R at the top furthest part of the house and then I stood at the bottom furthest part from the XDP-100R, so I had the maximum theoretical distance between the headphones and the XDP-100R. And honestly...

Just wanted to say that I've just tested using my V-Moda CFW's with my XDP-100R.   My house has three floors and so I put the XDP-100R on the top floor and no matter where I stood in the house, the signal was not degraded and didn't cutting out and sound quality was consistent.   Outside...

For anyone insterested, below are pics of the XDP-100R without the top and bottom bumpers.   You can remove the screws using a Phillips PH00 or PH000 head screwdriver.    

Both the Pioneer XDP-100R & Onkyo DP-X1 run stock Android 5.1.1, so you are able to easily download Spotify, Tidal, Deezer, Apple Music, Google Play Music, etc.