Due to its unique characteristics, graphene nanotubes have become the only general additives that can improve the properties of various materials. For example, some well-known acoustic brand manufacturers have long started to use nanotubes in the production of loudspeaker membranes, but they usually disperse graphene in traditional materials in a small amount and use a single method.
But this year, the application of graphene nanotubes in the field of acoustics has made a real breakthrough. Experts from the KB-GROUP Innovation Research and Production Center used TUBALL brand graphene nanotubes produced on a large scale through OCSiAl technology to produce a unique graphene tweeter film with a diameter of 25 mm after 3 years of hard work. The weight is only 0.025 grams. Compared with the same film made of other materials, its weight is 4-6 times lighter. In terms of sound accuracy, these diaphragms surpass the traditional diaphragms made of metal and composite materials, as well as the best examples of paper tweeters. In addition, the team has also developed unique composite diffusers for low and mid-frequency graphene nanotube speakers.
"Based on these speakers, we have created a series of two-way speaker systems. Among them, the system we produce uses a box-in-box design." said Igor Kuleshov, the general director of KB-GROUP's innovative research and production center. "It is important that the two speakers of our innovative speaker system are made of the same material-graphene nanotubes. Because of this, the two speakers are similar in sound, tone balance, and damping, despite their work. The range is different. This is a feature rarely achieved by other speaker manufacturers."