1) High power handling.  2,000 to 3,600W RMS, depending on the application. 

2) Flat response.  Both drivers are flat +-1dB to 500 Hz.  Not typical of high power subs... but that way by design.  This extend response allows the drivers to be used with a wide array of crossover frequencies and slopes. 

3) Very low power compression.  Inaudible for most applications. 

4) Super linearity.  100% linear BL product for +18mm of travel in EACH direction.  Proprietary spider and precise details in the surround provide exceptional mechanical linearity and smooth overdrive characteristics. 

5) Extremely low distortion, below the threshold of audibility for most of the output envelope. 

6) We are experts in Acoustic Power Density.  These drivers have the highest low frequency output ever obtained in standard 15" and 18" sizes thanks to 78mm of travel, high power handling and low power compression.  In many applications, one driver can be used where two are being used now. 

7) Relatively simple and bullet proof design.  We believe in the KISS principle. 

8) Parameters optimized for very low frequency performance.  These drivers can still be used to generate ludicrous amounts of "standard" bass (50-100 Hz) if needed, but they have been designed to excel at very low frequencies, requiring little or no equalization for many properly designed subwoofer applications, maximizing the power available from amplifiers.