I hate to bring this up again in a way but the SQ I have now with a humble Sony Walkman and Sony Walkman headphones, those yellow and gray jobs, is well beyond what I used to have with a conventional set-up - all tube Class A Woo Audio headphone amp, extensively modded Oppo 103 and naked Sennheiser 600s. I find the problem isn’t so much with the headphones but with the players. You know, scattered light and vibratory CD. I wish you could hear what I’ve heard with my ears. What’s coming out of untreated CD players I don’t want to hear with any headphones, much less expensive ones.
Best earphone for the value
https://www.amazon.com/gp/product/B07K2LHB1J/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
I bought the earphone after reading rave review on it.
SoundMagic E11C review | What Hi-Fi?
The review is spot on.
The most remarkable difference between this and free earphone distributed by Delta Airline is detailed treble.
I also compared this with Grado SR80E headphone that I have.
Grado have slightly more open bass but this one seems to have more details.
Due to the limitation of luggage, I would rather bring earphone than regular headphone for long travel.
This one fit my need at the cost of 60$.
I found that the music through Youtube or Amazon prime using SoundMAGIC E11C earphones is quite enjoyable.
I highly recommend this for travel.
Thomas