



Add definition and exhilaration to your usual drive. CSS674.
【KICKER CSS674 Separate 2-Way Speakers | For Those Who Want to Refine the Audio Contour from OEM Speakers】
“I feel the vocals are a little too far away”
“When I turn up the volume, the sound doesn’t come together as well”
“I want to replace the OEM speakers first and get the sound inside the car right”
If any of this sounds like you, KICKER CSS674 is an easy option to consider.
With a separate 2-way configuration, it plays back with the roles split by frequency range. Replacing your OEM speakers makes the placement of vocals and instruments easier to understand, creating speakers that help you achieve clearer sound imaging.
The CSS674 is the kind of speaker that refines the overall sound contour—not just by boosting bass.
Even when listening to your usual music, vocals’ expressions and sounds like guitar and piano are less likely to get buried, and when you raise the volume you can still follow each sound more easily.
For those who listen to music for long periods during commuting or driving, what matters isn’t only dramatic changes, but making it easier to enjoy music even at lower volume levels. You can also tend to notice differences in how easy it is to hear navigation voice prompts and vocals.
The tweeter level can be adjusted in three steps: 0dB / +3dB / +6dB.
Depending on the materials in the cabin and the tweeter mounting position, the treble may feel too strong—or conversely, slightly muffled. The CSS674’s feature is that you can use this adjustment range to match the car’s acoustics and your preferences.
Even the same speaker can produce a different sound impression depending on where and how it’s installed. With a separate 2-way setup especially, you’ll want to finish by paying attention to the tweeter’s orientation and how the sounds connect.
Speaker replacement isn’t something you can finish simply by swapping the units.
By proceeding while confirming the condition of the door side, the mounting method, the tweeter position, and wiring treatment—tailored to the vehicle—you can make it easier to take advantage of the CSS674’s “easy-to-listen-to” character. Since the required materials and installation methods also vary by vehicle model and OEM audio configuration, it’s safer not to decide everything based on the product alone.
If it were me, I would first ask what kind of music customers usually listen to, and what they find bothersome in their current sound, then sort out whether a simple speaker swap is enough—or whether you should also consider the installation method and surrounding processing.
At Logon, we guide you through the installation details not only for the visible parts, but also for areas that may become a concern later, such as mounting and wiring—so the work fits the car without putting it under unnecessary strain.
KICKER CSS674 is for people who don’t plan on building a large, full-scale system, but want to make the sound from OEM speakers a bit more listenable.
Depending on the vehicle model, OEM audio specifications, your sound preferences, and how you use it day to day, the recommended installation method can differ even for the same speaker. When you visit the shop, you can go over together which parts are more likely to change after the replacement and which parts don’t need to receive extra cost—while confirming on the actual vehicle.
If you’re thinking about replacing your speakers but can’t decide what to choose, please tell us what sounds you’re currently concerned about in your car. Let’s think it through carefully, starting from the direction that fits your vehicle.
【Basic Information】
Product name: CSS674
Brand: KICKER
Type: Separate 2-Way Speakers
【Adjustment Functions】
Tweeter level switch: 0dB / +3dB / +6dB
【Tweeter】
Material: Titanium
Mounting method: Flush mount / Angle mount / Stand-alone mount
Magnet: Neodymium
【Woofer】
Structure: With phase plug
*Organized based on manufacturer-published information
| Woofer Opening Size | 140mm |
| Woofer Depth Size | 47mm |
| TW Dashboard Attachment | ◎ |
| TW Upper Dashboard Exchange | ◎ |
| TW Door Mirror Exchange | ◎ |
| TW Pillar Exchange | ◎ |
| TW No Processing Mount Attachment | ◎ |