Greater clarity and imaging accuracy than Sennheiser HD6XX but much lower levels of bass ( which is lacking). More lively sound, great with live recordings, but not a relaxing listen like Sennheisers. Using Raspberry Pi + Allo digione HAT with Chord Mojo DAC/ headphone amp at desk. Buds move often when walking about (phone + mojo) and need constant adjusting to get bass back. Given them 80 hrs burn-in thus far - bass is better but still lacking enough depth. Will try other foam tips and EQ options.
MolzerI got some Dekoni foam tips (small) and the improvement is dramatic. Very happy with these IEM's now that I have tips that suit my ears. Bass is sufficiently full without requiring EQ. The P1's deserve the 5 stars when the tips are correct for your ear canal size, but in terms of out of the box experience for my ear size I stick by my 4 stars.