MSeries speakers feature the same rich beautiful sound as before with a new look. These coaxial speakers bring high quality sound to any application. If you're looking for accurate quality sound above all else, MSeries is the perfect fit. Features: Coaxial design Carbon fiber cone External passive crossovers MClip crossover mounting solution Rubber surround Coaxial Design: MS46, MS42 Specifications: Size (in): 4x6" RMS Power (w): 40 Peak Power: 80 Sensitivity (dB): 87 Mounting Depth (in): 2.25" Magnet Size (oz): 10 Warranty: 2 Grill included: N