Try the minimum phase filter. I find it sounds more spacious than the default linear phase filter. However you may not expect a big change since the difference can be minimal.

K702 is legendary for j-pop and ACGs. Cannot really enjoy the HD600 because of the bass roll off, though the mid-high timbre is reference leveled. 6XX is much better. HD599 sounds really dull, but the comfort is excellent.

iOS cannot do system-wide EQ adjustments like Android. The only option you can use for Apple Music is the EQ presets which are all trash without matching the FR of specific headphones. I would suggest to get DACs with PEQ like Qudelix 5k for hardware solutions, or just get an Android device...

Poweramp is much cheaper and easier to use. However it lacks the digital filters where you can find on 5k.

Shure SE215(fake) + comply professional memory foam tips. Superb noise isolation.

I will prefer less than $150. Don't want to spend more than my Airpods Pro as I got it on sale.

Hello, I'm looking for an IEM that sounds similar to airpods pro 1st generation (firmware 6A300), any suggestions?