FEATURES: There are a multitude of innovative features incorporated into the Control 300 Series: Premium High-Fidelity Performance Kevlar-Reinforced LF Cone for Performance and Durability Compression Drivers from AE Series (2412H from AC2212, 2407H from AM4212) Excellent Low-Frequency Extension Low-Saturation Transformers Extremely Clear Voice Articulation, Combined with Music Fidelity Precision Coverage Control The Cone and Throat Form a True Constant Coverage Horn Exceptionally Broadband Pattern Control Provides Consistent Coverage Innovative Features that Make C300 Easier to Install Multi-Pin Locking Connectors for Quick Clip-On Connection EZ-Rail™ Provides a "Helping Hand" During Installation Innovative Features that Make C300 Easier to Install Multi-Pin Locking Connectors for Quick Clip-On Connection EZ-Rail™ Provides a "Helping Hand" During Installation A Broad Line of Premium Accessories Backcans Utilize Thicker Metal and 12 mm (1/2 in) MDF Lining Contemporary Grilles 150 Watt Transformer for Applications Requiring Especially High Sound Level