Apples and bananas comparison. The LCD2's are open orthos. The D7k are closed and this seals off any inward air into the housing chamber of the driver itself producing more deeper notes (at least in this case as Denon tuned these to have more bass). If you want a fairer comparison of what a closed ortho can do with bass quantity and quality in a closed form factor, give the Thunderpants a go. Definitely able to satisfy any basshead, able to be tuned by amount of baffle or dynamat dampening and port holes.