Ah, I see. I might consider getting a complimentary speaker to set up along with STAX though even before that, I might consider upgrading to L700 first before thinking about speakers and other headphones. Also, I heard that the driver unit (srm-252s) needs to be warmed up a bit before listening to the earspeaker. Does the manual state how long I'd have to wait before using it? Better yet, do I need to turn off the driver unit when not in use? I'm so used to having my JDS EL stack on 24/7 with occasional power cycling for longevity.