Fitment comes before the price tag
This KICKER KS-Series set is a two-way component system, not a set of drop-in coaxials. It pairs two 6.5-inch woofers with two separate 1-inch tweeters, so you have more places to mount the high end and more wiring to plan.
Our advice is to confirm your vehicle accepts a 6.5-inch woofer in the doors or rear deck before you think about the deal. Component systems reward vehicles with usable tweeter locations, like factory sail panels, A-pillars or dash corners.
| Product detail | Value to match to your vehicle |
|---|---|
| Product | KICKER 51KSS6504 KS-Series 6.5" Component System |
| Model | 51KSS6504 |
What it will not do
KICKER markets this line for loud, accurate playback with deep bass from its magnet and voice coil design. That describes a speaker upgrade, not a cure for a failing factory amplifier, a damaged harness or a noisy electrical system.
If your current setup cuts out or distorts one channel, swapping speakers will not tell you why. Sort out the source and wiring first, then treat this set as the sound upgrade it is.
Rated 4.4 out of 5 from 27 ratings, based on the listing at the time of writing.
The offer at a glance
- Amazon price
- $212.96
- Customer rating
- 4.4
- Customer reviews
- 27
- Typical price over 90 days
- $246.18
- Difference
- $33.22 (13 percent)
The set is $212.96, down from a typical price over the last 90 days of $246.18. That works out to $33.22 off, or about 13 percent.
Because that is a typical price over the last 90 days, treat the comparison as a recent market average rather than a typical price over the last 90 days. Budget for amplification and sound treatment too, since those often cost more than the speakers themselves.
Power, mounting and door depth checks
Each woofer is 4 ohms. Confirm your head unit or amplifier is stable at that load, and check the RMS power you plan to feed them against the rating KICKER publishes for this model, since the number is not listed here.
Measure the mounting depth and cutout your doors allow before ordering. Components also need a path for the tweeter wire, whether that runs to a factory tweeter spot or a new surface mount.
Who should choose this set
Buy this pair if your vehicle takes 6.5-inch woofers, you have a spot for separate tweeters, and you want a 4-ohm component upgrade at $212.96. It suits someone building a system around an amplifier rather than a pure head-unit swap.
Skip it if you want a one-opening replacement, your factory locations only fit coaxials, or you are not ready to run new tweeter wiring. Confirm the depth, the tweeter location and your power plan, then decide.
Specifications
| Model | 51KSS6504 |
|---|
Guides from the desk
Preferred source
See more TunedDrive on Google
Select TunedDrive in Google’s source preferences. It takes a few seconds and costs nothing. Our car news, reviews and fixes become more likely to appear in your Top Stories, and AI Overviews can mark them as preferred.