Cadence ZRS84M 8" midrange speaker Specifications RMS Power Handling: 100 Watts PEAK Power Handling: 200 Watts Frequency Response: 88Hz - 6kHz SPL @ 1w/1m: 98dB System Impedance: 4-Ohm Magnet Weight: 40 oz Structure Weight: 80 oz Cutout Diameter: 7.25" Mounting Depth: 3.46" (8,8cm) Features • 8" Mid Range Speaker • Coated Kevlar Reinforced Pulp Paper Cone • Kevlar Reinforced Pulp Paper Dust Cap • 1.5" Oversized High Temperature CCAR Voice Coil TIL Bobbin • Open Steel Basket • Threated Accordion Surround