7Driver Speaker MB 400S 8 inches 4 Ohms 200 w RMS by Taramps

Shipments via FedEx:Shipping processing time is 0 to 1 business day after receipt of payment. We partner with Fedex - delivery in 2-3 working days in the USA and 5-7 working days worldwide. A tracking number will be provided when you make your purchase.   Description:RMS power: 200 w Musical Power: 400 w Nominal Impedance: 4 or 8 ohms Resistance: 3.1 / 6.2 ohms / VDC No (efficiency reference): 1.088% Sensitivity (@ 1W, 1m) - Outdoors: 92.386 dB Diaphragm Mass (mmd): 19.902 g Total mass (mms): 21,667 g Product bl: 11.048TM Mechanical Q (QMS): 7,031 Electrical Q: Total Q (qts): 0.460 Equivalent volume (vas): 13,218 l Frequency Response: 60 to 4,000 Hz Resonance Frequency: 74,864 Hz Le @ 10Khz (10khz coil inductance): 0.449mH Cone Effective Area (sd): 0.0211 Sq.m Distortionless cone excursion (X maX): - + 4 mm Free Flow Density: 11,300 GAUSS Nominal diameter: 8 inches Ferrite measurements: 134 x 63 x 18mm Coil Diameter: 2 inches Coil Height: 11 mm Coil Wire Material: Copper Bobbin th