Technical data:
Design：4.5-way vented-box
Frequency Response：25Hz-40kHz
Sensitivity (2.83V/1m)：90dB
Impedance：4 ohms
Power Recommended：50-500W 
Tweeter：Model：AST30130 aero striction tweeter. 
Rear Firing Tweeter：Model: APR2.1. Sandwich aluminum ribbon tweeter. 
Midrange：Model：AC130/DC50SC, 2 × 5.2″ Non-woven carbon fiber sandwich cone, 2″ copper clad aluminum flat wire voice coil . 
Woofer：Model：AC250/DC75C2C, 2 × 10″.Aluminum frame, Non-woven carbon fiber sandwich cone woofer, 3″ copper clad aluminum flat wire voice coil . 
Crossover Frequency：150Hz, 210Hz,1.8kHz and 12kHz 
Crossover’s Attenuation Slope：Woofer -12dB，Midrange：M1 -18d B，M2 -12dB， Tweeter -18dB，Rear firing tweeter -12dB. 
Crossover Components：M-cap Supreme MKP capacitors , M-cap MKP capacitors , Aurum Cantus MKP capacitors , OFC inductors , military grade metal oxide film resistors . 
Connective Cable：Teflon insulated OCC cable 
Damping Material：The polyester fiber and the PU foam
Connections：4 pcs 18mm gold-plated copper connector, Bi-wiring
Structure of Cabinet：Parabola-shaped cabinet structure. Midrange chamber and woofer chamber are completely separate. 
Cabinet Material：High quality MDF 
Finish：Sapele pomele PE high gloss paint.
Rosewood PE high gloss paint.
Cherry PE high gloss paint.
Maple PE high gloss paint.
Black PE high gloss paint .
 White PE high gloss paint. 
Dimensions (HWD)：1410mm×390mm×512mm (55.51″×15.35″×20.16″). 
Net Weight：82kgs/pc  (181lb/pc)