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Product highlights:

component speaker system includes 2 woofers, 2 tweeters, and 2 external crossovers
6-1/2" Plus One+ glass-fiber woofer cone with hi-roll rubber surround
edge-driven, silk dome tweeter
3-ohm impedance
handles up to 110 watts RMS (330 watts peak power)
frequency response: 45-40,000 Hz
sensitivity: 93 dB at 2.83 volts
woofer top-mount depth: 2.114"
cutout diameter: 5.128"
grilles not included

What's in the box:

Infinity Kappa 603CF owner's manual

2 Woofers
2 Tweeters (each has a 6" speaker lead attached terminated with male quick-slides)
2 Woofer adapter brackets
2 Crossovers
2 Threaded flush-mount cups
2 Plastic locking nuts
2 Surface-mount cups
2 Starfish mounts
Eight 1-1/2" Allen head screws
3mm Allen head bit
Eight 1-3/8" Screws
Eight 1/2" Screws
Six 3/8" Flat head screws
16 Speed clips
2 Adhesive backed Infinity logo badges
2 Adhesive backed foam gaskets
Template on box
Installation manual