Cadence Acoustics ZRS-5K 250-Watt Peak 2-Way Speaker Component Kit Cadence ZRS5K 5.25-inch 4 ohm 2-Way Speaker Component Kit Power Handling: 75W RMS/250W Peak Frequency Response: 65Hz - 22 kHz Sensitivity: 92dB @ 1w/1m SPL Mounting Depth: 2.36-inch