Engineered and designed in the US?? these midranges are composed of black color steel basket and cloth edge and non-pressed paper cones.</br>200 Watts RMS and 400 Watts Max Power</br>25 Ounces of High Strength Ferrite Magnets?? Impedance of 8-Ohms</br>96dB of Sensitivity</br>120 Hz - 10KHz Frequency Response</br></br>Product Description</br></br>During our focused R&D period of perfecting the EXL line?? we identified an opportunity to spawn-off a brother line since there was a division among competition audiophiles and concert/??voceteo?? audiophiles. Therefore we created the PRO audio line?? which features a wide variety of midranges and never-seen-before amplifier technology manufactured in South Korea. DS18 is a certified proud member of CEA?? IASCA?? MERA?? and SEMA.</br><br/>http://www.amazon.com/gp/product/B00N807ZS4