For sale: Sennheiser IE80s clone headphones. I haven't heard the originals, but I assume the originals sound very similar, Sennheiser doesn't know how to make in-ear headphones in my opinion, it's not their thing. The frequency response by ear corresponds to that measured from the original with a crinacle. Bass is over the top. There is a bass control, from a lot of bass to super a lot of bass. 16 Ohm, 116dB for the original, but these also scream loudly even from the phone. The cable is removable. This is for a hardcore basshead