Primus does you right
Infinity knows what music should sound like in the car, and their Primus PR503F 5-1/4" 2-way speakers fit more vehicles than ever. Plus, new technology, like Infinity's cooling vented basket frame, ensures maximum output with less wear and tear over the life of these speakers.
Ditch the uninspired vocals, muddy cymbals, and flabby bass of your factory sound and experience what Infinity quality is all about. Smooth vocals, crisp cymbals, and rich bass await you.
Edge-driven tweeter design
Infinity employs an edge-driven design for an open sound and minimal distortion at high volume. Prepare for a more clearly defined soundstage as the natural details in your music come alive.
Famous Plus One+ technology
The Primus polypropylene woofer employs Infinity's proprietary Plus One woofer design for solid, punchy bass. Infinity extends the cone right up to the edge of the basket, for more surface area — and a bigger cone means more bass when your music needs it.
Make the most of your power
Infinity's special "true 4-ohm architecture" uses a low-impedance voice coil to safely draw extra power out of your factory radio, aftermarket stereo, or an external amplifier, so you'll get a stronger and clearer sound.
Product highlights:
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
warranty: 18months
