Brand NEW! PRV Audio's Alto Series 8MR400A delivers an impressive combination of high output and smooth response. With a durable stamped steel frame and extensive voice coil venting this is one reliable driver. Highlights Copper-Clad Aluminum voice coil lowers moving mass for increased efficiency 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 PRV Audio 8MR400A 8" Alto Series Professional Midrange 8 Ohm From PRV's Alto Series, the 8MR400A 8" midrange/mid-bass is an excellent choice for any high output sound system. PRV drivers are known for their smooth mid-range response with low distortion and this 8" is no exception. 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. In addition, the voice coil is wound on a Kapton former with extensive venting ensuring high power handling for extended periods. Handling up to 200 watt RMS and with 94 dB sensitivity this midrange will be right at home in any home, automotive, or professional high SPL design. Product Specifications Nominal Diameter - 8" Power Handling (RMS) - 200 Watts Power Handling (max)- 400 Watts Impedance - 8 ohms Frequency Response80 to 8,500 Hz Sensitivity - 94 dB 2.83V/1m Voice Coil Diameter - 1.5" Thiele-Small Parameters Resonant Frequency (Fs)79 Hz DC Resistance (Re) - 6.1 ohms Voice Coil Inductance (Le)- 0.2 mH Mechanical Q (Qms)- 10.79 Electromagnetic Q (Qes)- 0.97 Total Q (Qts)- 0.89 Compliance Equivalent Volume (Vas)- 0.78 ft. Mechanical Compliance of Suspension (Cms)- 0.268 mm/N BL Product (BL)- 6.8 Tm Diaphragm Mass Inc. Airload (Mms)- 15.1g Maximum Linear Excursion (Xmax)- 1.65 mm Surface Area of Cone (Sd)- 241.6 cm Materials of Construction Cone Material - Paper Surround Material - Cloth Voice Coil Wire Material - CCA Voice Coil Former - Kapton / Polyimide Basket / Frame Material - Steel Magnet Material - Ferrite - All international buyers are responsible for all tax, duties and/or customs fees.