8"  low frequency driver providing 94dB sensitivity and 100Wrms    Frequency Response and Impedance Curves

The 0818MR is a high sensitivity, midrange loudspeaker designed for use in large 3-way systems. Its closed-back chassis simplifies cabinet manufacture, eliminating the need for a separate midrange enclosure.Celestion Truvox 0818MR 8" Raw Frame Speaker Features: