Apple headphones have better audio fidelity than you are giving them credit for. I have several different pairs of high-end studio headphones and expensive amps to drive them. The Apple Max, which I also own, frankly provides a cleaner reference than some of the classics. They are perfectly usable as reference headphones.

The built-in Apple audio DSP, amps, etc have surprisingly good fidelity. Much higher quality than you would expect from consumer hardware. They even provide high-impedance headphone jacks on their recent computers.