MB Quart marine and powersports certified 8 inch wake tower coincident mounted compression horns in a compact enclosure featuring UHS (ultra-high sensitivity) Technology and Wavelength Transparent Acoustic Lenses with a polypropylene cone. Packaged as pairs. Features: Marine Grade Protection / IPX Rating LIFE SHIELD: Tested to the highest marine and motorsports standards for protection against sun fade, fresh/salt water spray as well as dust and sand. Tweeters 1 inch pure Titanium dome tweeter for very smooth musical response, high output with minimal required amplifier power. Cone Material 8 inch Composite Poly Midrange: Water resistant composite polypropylene cone with temperature stable Butyl rubber surround mounted on a lightweight composite frame. Surround / Cone Coupling Natural Butyl Rubber Surround remains musical in all weather. Does not stiffen in cold. ​Voice Coil / Former Assembly High temperature copper voice coil. Voice coil is high temperature copper, wound on a Kapton former which allows the voice coil to handle more power while remaining light in weight. Spider Water resistant, woven fiber composite spider to stabilize the cone and voice coil in all musical situations. Specifications: Type: Speaker Brand: MB Quart Series: Nautic NH2 Category: Marine, Powersports Condition: New Color: Black Model Replaced: NHT1-120BPR Warranty: 1 Year IPX Rating: IPX67 Compatible Vehicles: Universal Speaker RMS Power Handling (watts): 90 Speaker Peak Power Handling (watts): 180 Speaker Impedance (ohms): 20Hz-24kHz Speaker Sensitivity: 92dB Speaker Crossover Slope: 12dB Speaker Tower Length (in): 11.2 Speaker Hang Height (in): 9.035 Speaker Height (in): 8.4 Speaker Width (in): 8.4 Speaker Size (in): 8