Waterfall speakers:I assume they damp the driver itself - otherwise this is just one of the dumbest designs I've ever seen.
Hey,It seems that every other headphone/IEM I've tried has lackluster or altogether no cup/shell damping. Why is that so?Is it too hard to do or too expensive? (Not that a bit of cotton or wool is expensive really...)(Doesn't apply to fully open ones, usually. But still can happen, e.g. HD800.)The most egregious cases are for example Beyerdynamic Tesla series (most use lackluster foam circle as damping) and Fostex T50RP (none at all) perhaps.Almost all IEMs don't have damping, but there it's not as critical, because resonant cavity is small.Not to mention lack of earpad damping where applicable...
He's talking damping the housing behind or around the driver based on reflections and resonances/'ringing' as per the sites' modus operandi. You are talking about acoustic impedance and frequency response shaping which involves a few other aspects apart from the OP's damping question. If you think of a speaker, what you are referring to is basically using a grill for tuning over the front of the driver. He is referring to the stuff going on behind it in the cabinet (also the room treatment if we carry the example further).
