Hi, Has anybody bothered to take dB SPL/W measurements on the K10U or equivalent? I suppose this could be calculated based on the crossover circuit and ba drivers but I'm not the man to do that either.

Hey headfi, I just read about impedance and efficiency and I am still a bit unsure. I head a lot on the go directly via my Smartphone (Xiaomi Pocophone F1) with a Software EQ "Equalizer FX" with just the Bassboost Effect turned about 50-75% up (since I like this bassboost more than using the...