The 6MR200A-4 midrange speaker is our solution for PROAudioOnWheels for Car audio systems. This unit was designed with the goal of producing the highest possible output from a compact design without sacrificing performance, with only 2.24″ mounting depth. To ensure absolute signal fidelity, a cloth sealed surround is combined with a carefully crafted Kevlar-loaded paper cone. Additionally, a vented pole piece allows heat to escape for reduced power compression. Impressive choice for high output home, car, and professional audio systems Smooth response through the mid-bass and vocal range Rigid yet lightweight stamped steel frame Use this midrange in professional 3-way sound system, as a high output car audio door speaker, or as a midrange in a bass guitar speaker. With a naturally damped paper cone and cloth accordion surround resonances are kept under control making for an easy transition to a high frequency driver. Nominal Diameter: 6″ (152 mm) Nominal impedance: 4 Ohms Rated AES Power Handling (RMS): 100 Watts Program Power: 200 Watts Sensitivity 2.00V at 1m: 94 dB Recommended Hi Pass Crossover: 150 Hz For Full Power Handling12db Per Octave Crossover Frequency Response at -10Db: 155 – 11,000 Hz Voice Coil Diameter: 1.5″ (38 mm) Voice Coil Wire: Copper Voice Coil Winding Depth: 8.0 mm Former Material: Kapton Magnetic Gap Depth: 5.5 mm Frame Material: Stamped Steel Overall Diameter: 6.59″ (167.5 mm) Front Mount Baffle Cutout: 5.69″ (144.5 mm) Mounting Depth: 2.24″ (57 mm) Overall Depth: 2.5″ 63.5 mm).