Screaming onto the scene is DS18’s PRO-DR1PK44 that has an all new design and has been tweaked for maximum performance and loudness. This horn driver sports a 1″ 8-ohm CCA voice coil to absorb the 240w peak power and is designed to really make it loud with efficiency. This driver comes with an attached square shaped screw on throat that makes it very versatile while also enhancing acoustics and decibel levels. This driver has a 107.3 DB sensitivity so the potential of screaming loudness is easily obtainable with the right combination of power. This driver’s frequency range is very wide starting at 800hz all the way up to ear drum shattering 20khz! The PRO-DR1PK44 is sure to complete your pro audio system and complement all your other speakers with crisp and clear high range sound. Throat Diameter1″ Horn Diameter 3.14×3.14″ Horn Depth 2.36″ Installation Type Screw Down Nominal Impedance 8 ohm Peak Power Handling 240W Program Power Handling 120W AES Power Handling 60W Sensitivity with Horn (1w/1m) 107.3dB Frequency Response 800Hz-20KHz Recommended HI Pass Crossover 900Hz Motor Voice Coil Diameter1″ Voice Coil Former Material Kapton Winding Material CCA Diaphragm Material Phenolic Magnet Materia lFerrite Magnet Weight 0.38 oz Measurements Overall Diameter 4.52″ Overall Depth 4.88″ Bolt Pattern 3.95″ Mounting Depth 4.56″ Mounting Hole 3.26″ x 3.26″