Audio Specifications Power Handling : 70W RMS, 420W peakSensitivity (@ 2.83V) : 92dBImpedance (ohms): 3Frequency Response : 50Hz – 21kHz Ultimate Car Audio by JBL JBL Stage3 speakers bring patented technologies, world-class engineering and JBL pro sound heritage together to create a powerful line of car audio loudspeakers. Focusing on performance and fitment, they bring unrivaled sound performance to your vehicle. The high output 3 ohm DCR design extracts every watt of power from the amplifier or head unit enabling the patented Plus One™ woofers to deliver high output and solid deep bass performance. Our rigorous OEM-level reliability testing provides peace of mind when it’s time to crank it up for that inimitable JBL adrenalin surge