Every headphone I auditioned prior to the Sig DJ left me wanting more or feeling like something was missing (including the Q40). Owning the Sig DJ, I can't imagine a more satisfying listening experience.
P.S. I have a Klipsch reference subwoofer in my home theater that weighs about 75 lbs. and has a 12" driver in the front with a matching 12" passive radiator on the back. I love my bass.
very nice, how does it compare to the He 500?