Infinity Primus PR6512is Coaxial Speaker

Php 6,000.00
6-1/2" 2-way car coaxial speakers

About the Infinity Primus PR6512is

Treat yourself to an upgrade

When the thrill of owning a new (or new-to-you) car wears off, there’s one sure-fire way to bring the excitement back to your drive. Install Infinity’s Primus PR6512is 6-1/2″ 2-way speakers in your doors and say goodbye to the uninspired vocals, muddy cymbals, and flabby bass of your factory sound. Lifelike vocals, crisp cymbals, and well-defined bass await you. What new playlists will you create to put these awesome speakers to the test?

Edge-driven tweeter design

Infinity employs an edge-driven design in their soft dome tweeters for a smoother, more open response and minimal distortion at high volume. Prepare for a more clearly defined soundstage as the details in your music come alive.

Famous Plus One+ technology

This Primus polypropylene woofer delivers solid, punchy bass, thanks to Infinity’s proprietary Plus One+ woofer design. Infinity extends the cone right up to the edge of the basket, giving you lots of 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 clearer sound. Grilles are included.



  • 6-1/2″ 2-way car speakers
  • Plus One+ polypropylene woofer cone with hi-roll rubber surround
  • edge-driven, textile dome tweeter
  • 2.7-ohm impedance for extra power (compatible with virtually all factory or aftermarket car stereos)
  • handles up to 55 watts RMS (165 watts peak power)
  • frequency response: 53-20,000 Hz
  • sensitivity: 88 dB at 2.83 volts
  • top-mount depth: 2-1/16″
  • grilles included



Speaker Size6 1/2
Tweeter DesignEdge-Driven Dome
Impedance (Ohms)2.7
Tweeter CompositionTextile
Woofer CompositionPolypropylene
Woofer SurroundRubber
Sensitivity (1W at 1 meter)N/A
Sensitivity at 2.83 volts88
Frequency Response53 – 20k Hz
Minimum RMS Wattage
Maximum RMS Wattage55
Peak Power Handling (Watts)165
Top-mount Depth (Inches)2 1/16
Bottom-mount Depth (Inches)N/A
Cutout Diameter or Length (inches)5 1/16





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