I decided to gives tubes a try again after many years of using SS gear. My past experience with tube gear was not very positive (Melos SHA- power supply hum, hum though the headphones and speakers and poor quality toggle switch feel) (Music Reference RM9 MkII lint shorts, blown fuses,popping...

When exercising, I have been using my iAudio G3 with the Sony MDR-EX71's (no headphone amp). The EX71's sound good to my ears (bass can be a bit too much)but the cable is thin and gets tangled and is very microphonic. Whenever I move during exercise the cable transmits the sound to the...