the plasma contained in the cavities is set in motion. The plasma emits UV rays (shown in violet on the diagram) that hit the scintillators at the bottom of each cavity. These scintillators are chosen to emit one primary color each - red, green, or blue. The...

impedance is 12 ohms, the total value works out to a standard 4 ohms. The rear loading, despite appearances, is common to all three - the three cavities and their baffles communicate. This design is problematic with the micro drivers. The diameter of their...

Actually, the headset comes with three sets of cushions: large, medium and small. The set you use depends on the size of your ear cavity and your own personal comfort preferences. Using the right cushion for your ear cavity size both seals the earbud-to-cavity...

drivers (two tweeters + one woofer) will move back and forth simultaneously. In absolute terms, this is necessary for good sound – though it’s debatable for the rear speaker –, but without a separate cavity and without an opening to ensure constant pressure,...

get the benefit of a proximity effect for bass reproduction. In other words, the unit is perfect for stretching out in a deck chair with it sitting on your chest - you feel the vibrations of the bass in your thoracic cavity, and your ears get a very nice stereo...

which could distort the measurements of the screen itself. This unwanted nuisance is most often the result of ambient lighting at 50Hz AC. We get around this by placing the photodiode at the bottom of an opaque cavity, which we then literally stick to the screen...