KICKER 46CSC674 CS-Series CSC67 6.75-Inch (165mm) Coaxial Speakers, 4-Ohm (Pair)

These Kicker speakers sound fantastic and handle the power from my modest Alpine amplifier (45 watts per channel) with ease. Clear and crisp and balanced even at higher volumes. Full disclosure I run these with a 80hz HPF and let my subwoofer handle the real bass. If you don’t have a sub these speakers are spec’d to play down to 40 hz and can do it at modest volume and will sound fine, they do have average to above average mechanical excursion abilities but don’t expect miracles. Entry-level speakers like these often get a bad rep because many DIY installers expect them to completely transform their system on their own. It’s important to understand that these speakers are designed to replicate—or slightly improve—factory performance using better materials, while being robust enough to handle modest amplification and work using factory wiring and harnesses. Without adding an amplifier, proper sound deadening, or paying attention to details like the the condition of your door’s vapor barrier or any other air (sound) leaks, even great speakers can sound weak and may only match the performance of stock speakers—unless the originals were severely deteriorated. Lastly, for those wondering, the 6.5" and 6.75" version of these Kicker speakers are functionally identical in mounting patterns and included grills are identical, so installation was straightforward. The 6.5 has slightly less mounting depth and would be the one I would recommend if you’re one the fence between the two sizes. Having used both sizes the I consider any sound difference betwen the 6.5 and 6.75 imperceptible. If you’re realistic about what these speakers are designed for and install them thoughtfully, they’ll absolutely deliver.

Great quality product and nice replacement of OEM speakers in most cases. These speakers sound way better and can handle the sound better even without upgrading the factory amp.

good

思ったよりも良かったです

Used to improve sound in a Scion IQ in the doors and in the back. They are awesome! The install was pretty easy using brackets with wire adapters from Amazon for the front doors. I used the same brackets for the rear speakers and I had to modify the brackets quite a bit, but they turned out great. I wish I had done this years ago. 80% of the sound improvement comes from the doors, but it was worth it doing the rear speakers too.