Hmm, where did you find the sp51's for 55% off. I'm currently searching for a decent pair of iem as well and they don't seem that bad. Sent from my SAMSUNG-SGH-I897 using Tapatalk

Hi, just joined the forums and this is my first time posting :) I read somewhere that replacing the pads on DT770's may improve the recessed mids. So, i was wondering if it is possible to buy DT990 leather pads and replace the velour pads on my DT770?