Vibration velocity chart shows even better results when the inefficiencies of the microphone and amplifier system are removed
Design of the graphene loudspeaker
This jury-rigged, lab-built graphene speaker is already delivering better sound quality than the commercially-available Sennheiser MX400
Frequency response charts for the graphene earbud (top), the Sennheiser MX400 (middle) and a thermoacoustic speaker (bottom)
Graphene is frankly just showing off at this point. Not content with breezing in and smashing records in solar efficiency, kicking the butt of lithium-ion batteries, being the strongest known material in the Universe, being 1,000 times more light-sensitive than any known camera sensor and a thousand other achievements, now this smug supermaterial is having a crack at audio. How’s it going? Well, with basically zero acoustic development, a graphene loudspeaker is already boasting a better frequency response curve than a set of Sennheiser MX-400s.
Other Images from this Gallery