Infinity Kappa 503CF Kappa Series 5-1/4" component speaker system

General Features: 

• component speaker system includes 2 woofers, 2 tweeters, and 2 external crossovers
• 5-1/4" Plus One+ glass-fiber woofer cone with hi-roll rubber surround
• 3/4" edge-driven, silk dome tweeter
• 3-ohm impedance
• handles up to 80 watts RMS (240 watts peak power)
• frequency response: 55-40,000 Hz
• sensitivity: 93 dB at 2.83 volts
• grilles not included

Kappa quality

Infinity designed and built their Kappa Series for audiophile tastes. This Kappa 503CF 5-1/4" component speaker system benefits from a refined design, Infinity's proprietary technology, and premium materials to deliver uncompromised audio quality. Plus, Infinity has added convenient features for getting just the right sound for your ride.

Edge-driven silk dome tweeters

Infinity employs an edge-driven design in their silk dome tweeters for a smoother, more open response and minimal distortion at high volume. With a frequency response that peaks at 40,000 Hz, you'll have what you need to hear a new level of detail in the car. Dial in your sound even more and adjust the tweeter level using the control button on the separate crossovers.

Plus One+ woofer technology

Kappa's glass fiber woofer will hold its shape when the power's cranked up, so you still get punchy and defined bass. Glass fiber weighs less than traditional materials, so you don't need a ton of power to drive this woofer either. Infinity's Plus One+ woofer technology extends the cone right up to the edge of the basket, giving you lots of surface area — and a bigger cone means more bass to complement the superior high-frequency response.

Premium crossovers

Infinity holds their external crossovers to the same standards as the rest of this speaker system. Premium components shape the distinctive Kappa sound and bring out all the details that make your music sound real. These crossovers will easily accommodate an upgrade to a 3-way system if you'd like to add Infinity's optional 203S and 303S midrange drivers.

Awesome power handling, no matter the system

These 3-ohm speakers boast ultra-high sensitivity so that you can power them with a factory radio or aftermarket stereo, but you'll get your best results feeding them plenty of power from an outboard amp. Either way, these speakers' low impedance safely takes advantage of every watt of power available for exceptional performance. Enjoy Kappa sound quality at any volume.

Grilles are not included; the factory grilles should be suitable for most applications.