About Carbon Fiber Reinforced Plastic (CFRP)
Traditional speakers are made with optimized materials and a structure suited to the specific playback bandwidth. For example, if the diaphragm is thinned and its weight is reduced, it becomes optimal for high-frequency audio playback, but will also hurt its low frequency capabilities. If the diaphragm is thick and rigid, it becomes optimal only for low-frequency audio playback but too heavy to play high-frequency tones. The challenge during the speaker production process is selecting materials that complement the characteristics of the speaker while overcoming disadvantages during playback. In other words, the material of the speaker directly impacts the sound during playback. To tackle this issue, AlpineF#1Status unified the tones of the speakers by unifying their material and structure. After extensive research, the best result was using Carbon-Fiber Reinforced Plastics (CFRP). With a lightweight, yet highly rigid material, CFRP is used as the diaphragm for speakers ranging from the ultrahigh frequency tweeter to the low frequency subwoofer. This is the first time the same cone material has been used throughout the entire system from tweeter to subwoofer in the car audio industry.