Cadence Acoustics XM84HC 250-Watt Peak 4-Ohm High Compression Open Basket Midrange Speaker Cadence XM84hc 8-inch 4 ohm open basket high compression midrange Power Handling: 125W RMS / 250W Peak Frequency Response: 110Hz - 17 kHz Sensitivity: 103dB @ 1w/1m SPL Mounting Depth: 2.60-inch