Panasonic bamboo fiber speaker on the "Toyota".

Toyota in 2008 the May 12, overall improvement of "ALPHARD" and the same time listing of sister cars "VELLFIRE" car stereo, first introduced the bamboo-made speakers. The speakers to the audio system of matching item, object is 18 or 11-speaker in the dashboard of the three. These three are responsible for high range of diameter 6.5cm speakers, to highlight the sound of crying, relaxation and adopts bamboo fiber. In fact, does not necessarily only the bamboo, but rather use the pulp wood fiber doped with a certain proportion of bamboo short fibers. After a short fiber doped with bamboo, vibration plate transmission speed of the voice will be accelerated. The sound vibration transfer speed depends on plates rigidity and quality, it is often used as a measurement of vibration plate. For vibration plates with another evaluation indicators--sound attenuation, the use of bamboo and wood fibre used is the same. Including the speaker, the entire sound system from Matsushita Electric Industrial manufacturing. Panasonic to choose wood fiber and bamboo fiber procurement from paper mills, and even paper processes are performed by the internal. The other characteristics of the sound system is equipped with a sliding door 16cm full range speakers. While other companies are also equipped with sliding door speakers have been, but Toyota is the first time. Other companies are the speakers are equipped with the easy installation of door back-end. The concept of "ALPHARD" is 3 rows of seats in the sat 2 row passengers entertained for the "ultimate" object. Door speakers become 2nd row passengers of main speakers, so I hope to be able to put the speaker is mounted on the door on the front of the best locations. However, this site and the car door, sliding door and the inside of the Cup holder and other parts there are disturbed. The sound development of the higher priority level, so the above parts for design changes, so will the speaker configuration to the front door.