woofer Size: 6.5”,  TweeterSize 2"  
RMS Power handling: 400 Watts per channel (200W - 400W RMS per channel is recommended)
Sensitivity: 96 db @ 2.83V 
Frequency Response: 38-40,000 hz
Motor Type: Internal NEO Magnet (TWEETER and WOOFER)
Voice Coil Type: Ultra-High Temp Single 2 ohm Coil 
Voice Coil Impedance: 2 ohm nominal
Sensitivity: 96 db (2.83V / 1m) 
Included External Crossover 18db/oct w tweeter protection
 

for ACTIVE 2 way component setup use with Critical MASS 4CH amplifier model # ELS-1000.4 For active crossover set ELS-1000.4, front channels to 3Khz Hi-pass and connect to tweeters only. Set rear channels to 3Khz Lo-pass and connect to Woofers only. 

ULTRA-PERFORMANCE LIGHTWEIGHT 2 OHM DESIGN:

This component kit is an Ultra-Performance 6.5" Component kit made to use every watt from your 2 ohm amplifier

This set handles up-to 7 times more power, has a considerably higher linear and maximum excursion, and
audibly lower distortion, while weighing as much as 66% less than the competition.
 
TRUE CARBON FIBER CONE:

This cone is made of real Carbon fiber to withstand more than 1000 Watts of peak music power.
The Lightweight Carbon Fiber Cone increases rigidity, efficiency and clarity at all levels which ultimately means more, undistorted sound. 

Included in this pro 2 ohm kit:

• Two 6-1/2" Woofers
• Two tweeters
• Two High-pass (protection for tweeters) Crossover networks