[KICKER KSC504 10cm Coaxial Speakers]

The sound from the factory speakers just isn’t satisfying.
But you don’t want to do major modifications either.
That’s exactly what the KICKER KSC504 is for.

Even in the small 10cm class, the amount of sonic information and overall listenability change noticeably.
With the lively, energetic character you expect from KICKER, the KS series is also designed to be less harsh on the ears, making vocal and instrument contours easier to hear. You’ll notice the difference even on short commutes or trips to the store, and it’s a model that’s easy to set up for comfortable, fatigue-resistant listening over long periods.

The combination of a polypropylene woofer with vibration-damping inside and a rubber surround helps the speaker reproduce the midrange through the bass foundation in a straightforward way, while the high end naturally extends with a silk-dome tweeter.
This is a major appeal of the KSC504: it’s easier to keep common factory-speaker complaints in check—sound that feels muffled, vocals that seem to sit back, and harshness when you turn the volume up.

Another big point is that this model uses a thin, low-profile design.
With a shallow mounting depth and a much smaller tweeter protrusion, it’s the kind of speaker that’s easier to choose even for cars with limited space. When considering mounting in the factory location, this “fit” is genuinely important. Speaker upgrades aren’t only about performance—your finish and satisfaction also depend on whether they can be installed neatly without forcing anything.

At Log On, we don’t stop at simply swapping the speakers.
While checking compatibility with the door structure of each vehicle and the factory head unit, we carefully handle everything from the mounting method to wiring treatment and how the speakers are secured.
Even with the same speaker, the way the sound comes together can change depending on installation stability and even small gap treatments, and the way you adjust the system to match how it’s played can significantly change what you hear.
Avoiding “it was installed, but I didn’t feel the change I expected” is a big advantage of letting a specialty shop handle the work.

The KICKER KSC504 is
• for those who want to feel a solid change from the factory speakers
• for those who want a model that doesn’t make the highs too harsh
• for those who are concerned about mounting space
• for those who want to start with a replacement
—an extremely realistic and easy-to-choose option.

Because the final result can vary depending on the mounting parts used or whether minor modifications are needed for each vehicle, it’s best to evaluate case by case.
At Log On, based on your vehicle and your current system, we can guide you not only with a no-stress mounting approach, but also with how the sound will come together.
It’s a model that you can move forward with even if it’s your first speaker replacement.

For those seeking these kinds of changes

• You feel the factory sound is thin or muffled
• You want vocals to be easier to hear
• You want to enjoy listening even at low volume
• You want a natural finish using the factory mounting locations on the door or dash
• You want a satisfying upgrade without overspending

Points where installation and adjustment make a difference

While the KSC504 is easy to introduce thanks to its size, it’s also a speaker whose impression can change depending on the condition of the mounting surface and how gaps around it are treated.
That’s why it’s important not only to replace it, but to fit it properly according to the conditions of your vehicle.

At Log On, we finish the installation with an eye toward a state you can use safely and comfortably for a long time—this includes treatments for parts you can’t see and how the wiring is organized.
If needed, we can also discuss deadening and system upgrades, but without forcing the conversation, we’ll propose based on the question of how to make the most of this speaker first.

Summary

The KICKER KSC504 is a well-balanced 10cm speaker suited to people who want to clearly feel the difference with a factory-speaker replacement.
Not flashy—but it does make a real change.
That “just right” balance is the strength of this model.

By also looking at mounting conditions specific to your vehicle and how it matches your current audio, you can make a choice with fewer regrets.
Even if you’re at the stage of “I want to consult whether it will suit my car,” that’s fine.
At Log On, we’ll guide you with a view toward being truly satisfied after the installation.

■ Main Specifications / Specs

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[Basic Information]
Product name: KSC504
Brand: KICKER
Type: 10cm coaxial speakers

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[Performance]
Recommended input: 15–75W
Tweeter: Silk dome
Woofer material: Polypropylene
Surround: Rubber

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[Mounting / Compatibility]
Mounting depth: Less than 2 inches
Tweeter protrusion: Less than 1mm
Feature: Thin, low-profile design
Compatibility: Designed to suit many vehicle models
Grille: Compatible with KSC5G grille

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• Organized based on manufacturer-published information