Alpine introduces the all-new X-Series of high-grade speakers and amplifiers. These products have been engineered and tuned to create a perfect match for extraordinarily dynamic, realistic sound reproduction and a spatial sound impression. With Alpine X-Series speakers, you can enjoy Hi-Res Audio playback up to 40kHz with stunning detail and dynamic. These flagship speakers have been engineered and tuned with highest precision and use highest grade materials, while staying affordable and offering a wide vehicle compatibility.
Specifications:
Power Handling
Peak Power: 330 Watts
RMS Power: 110 Watts
Dimensions
Woofer Mounting Diameter: 137 mm
Woofer Mounting Depth: 59 mm
General
Frequency Response: 55 Hz - 50 kHz
mpedance: 4 Ohms
Recommended Amplification : 120 W RMS, per Channel
Sensitivity : 89dB / W (1m)
Tweeter
1′′ (2.5cm) Hard Dome Carbon Graphite Tweeter
Neodymium Magnet
Surface Mount Application
Woofer
Nano-Fibre Cone
Radial Ring Magnet Design
HAMR Surround
Large 35mm Voice Coil
Ultra High Density Neodymium Magnet
Shallow Mounting Design
Network (X-S65C and X-S69C only) 
Compact design for easy installation
In-line Network Design
Tweeter level Adjustment: 3 Steps (-3, 0, +3dB)
Phase adjustment (normal / reverse)
High Grade Network Components