Retired guy here living in Northern NJ. I'm a terrible guitar player and have been for over 50 years. Dipped my toes in the audiophile pool about 30 yrs ago and exited in favor of listening to music again and not equipment.
Currently I'm using an iBasso DX90 with some 'lesser' headphones, the beyerdynamic DT 1350 and the ThinkSound ON1. I enjoy my listening sessions but am shooting for an even better experience. There's a box containing an HE-500 in transit to me and I look forward to what it will bring in listening pleasure. Also looking forward to reading much more of the posts here. I've read several hundred so far but man, do I have a long way to go.....
Regards,
Tommy

We're all learning here together, Tommy, so--welcome! Why don't you bring us up speed on that HE 500 when it arrives? That will be a great way to introduce yourself in a review. Tons of people will read it. Just a thought. Take care!

The DT 1350 is a very good portable can.  I haven't heard your other one.  The DX90 is a quality DAP.
 
The HE 500 is excellent but will need an amp.