Infinity Primus 503F Primus Series 5-1/4" 2-way car speakers
5-1/4" 2-way car speakers
Plus One+ polypropylene woofer cone with hi-roll rubber surround
3/4" edge-driven silk dome tweeter
3-ohm impedance for extra power (compatible with virtually all factory or aftermarket car stereos)
handles up to 40 watts RMS (120 watts peak power)
frequency response: 75-20,000 Hz
sensitivity: 91 dB at 2.83 volts
grilles not included