I see, thanks

Ill definitely try those KCS75s and a SHP9500 after I get paid. After all I did just buy around 80$ in car speaker equipment. Thanks for the info though

The headphones in question are sony whxm4s. And the loudspeakers sound much more clear with better bass, mid, and treble.

While the xm4s I definitely knew they werent going to be audiophile but being beaten out by some budget car speakers should not be a thing. What I was thinking was doing a 2-3 way headphone driver having the frequencies being split to multi drivers made sense to me. As like others have said, a big cone is going to have a hard time doing highs accurately.

So why do IEMs do it when wouldnt headphones stand to benefit the most from it, being able to have the lows and mids on the woofer and a tweeter to do all the highs?

Interesting, just was something I noticed that multi driver loudspeakers sounded better than my headphones ive got while being way cheaper. Kinda makes sense, like I could understand being able to hear the music coming from another driver. Thank you for your reply.