If you believe in Harman research it's not possible to tell apart 2 different headphones eq'd to the same curve. There are obviously exceptions like distortion at high volumes
Most people here probably use iphones, so it's not possible to use Wavelet and squig.link measurements, but if you use android it's kinda pointless to spend money on new iems when you can eq stuff that you already own and get the same results
Yes, they all ring, i.e. show oscillation of a signal in the step response, but in a different way. This is a silk dome tweeter, and it's much smoother then the previous one which I posted, which was aluminium.
If you compare datasheets you'll see that 50ASX2 offers great performance in a single end configuration, better than 125ASX2 or other modules from ICEpower. The fact that this manufacturer ran it in bridged mode shows that they didn't know what they were doing.