I want to start thanking Barra for hosting the tour, and Emil from Lime Ears for offering the tour to all of us. Since sound is subjective, my opinions are just that.... My own. I initially listened to all with red tips, then re-listened to the LE2 and Aether with Comply TX500 foam tips. Possibly a 400 series is better, the 500 slid on pretty easily. I also switched between my fiio X5 and my Brick with Polaris amp. My test playlist contains about 12 songs. It varies from Lindsey Stirlling to Swedish House Mafia, and from Johnny Cash to AC/DC. With some LINN classical recordings mixed in. I have listened to these many, many times with different equipment. In regards to these ceims, I felt that they are fun and musically energetic. Initial opinion was that I felt a warm musical balance in the LE2, and LE3SW. The Comply added a lower full bass to the LE2. The sound is noticeably improved as you move up the selection. The 3 is like an improvement of the 2. I felt with the switch on, they were similar. Yet there is the ability to lessen the bass. This option is quite nice on classical music, it really allows the notes to be separated. Listening to the 2 with "One" by Swedish House Mafia, the bass really hit full, yet wasn't overpowering. The Aether was an improvement above the others. The soundstage felt larger, and the notes clearer. With the Aether, the bass felt more separated, yet sharper. The soundstage is bigger than the other two and I felt more connected to the music with the Aether. One thing I noticed was the 2 and 3 seemed to be improved with an amp, I did not notice as much of an improvement on the Aether by using the amp. They were all comfortable to listen to for hours. My longest session was about 4 yours. I enjoyed jazz and classical more with the Aether than with the other two. Yet I enjoyed my music with all three. Hope this might give you guys an idea what you're in for. Enjoy!