Alpine DP -65C ,the first use of the new diaphragm material "Hybrid fiber”High rigid carbon fiber reflects the power of bass. The high toughness bulletproof fiber clearly reflects the soft voice of the mid-tone, and Midtones, a bass unit using unified diaphragm material, to achieve a wide range of sound source playback convergence natural. 
The Alpine uniqueness technology H.A.M.R. (High Amplitude Multi-Roll) surround adapted from the high-end sound system, increasing high output and superb sound quality.
The aluminum-magnesium alloy tweeter can reproduce the sound of the instrument's heavenly sound.