Are Kicker Speakers Good?
Good at the job each line was built for, and the lines differ a lot. Here is what to buy for what, plus the mistake that destroys good drivers.
Kicker is good if you are buying it for the job it was designed for, and the range divides very clearly by job. The subwoofers and subwoofer amplifiers are the strong part. The component sets at the KS and QS tiers are competitive. The entry coaxials are a factory upgrade rather than an enthusiast product. Buying the wrong tier for your use is where the disappointment comes from.
Here is what each part of the range is actually for.
The subwoofer lines
| Line | Position | Suits |
|---|---|---|
| Comp | Entry, sealed box friendly | A first subwoofer, modest power |
| CompR | Mid, higher excursion | The volume seller, ported or sealed |
| CompVR | Mid, dual voice coil focus | Wiring flexibility for amp matching |
| Solo-Baric L7 | Upper, square cone | Maximum output, needs a proper box |
| Loaded enclosures | Any | Anyone not building their own box |
The step from Comp to CompR is the one most people feel, and it is where the excursion and motor strength start to justify a larger amplifier.
The L7 line is where the brand’s identity lives, and it demands the most from your installation. In an undersized or badly built box it will underperform a cheaper driver in a correct one.
If you are not going to build or commission an enclosure matched to the driver, buy a Kicker loaded enclosure. The pairing was decided by someone with the parameters, which removes the single biggest variable.
The full range speakers
CS is the entry coaxial line. It is a real improvement over factory paper cones, easy to drive from head unit power, and unremarkable beyond that. Treat it as a sensible factory replacement rather than a step into car audio.
KS is where the range becomes properly good. Better motors, better materials, and component sets with crossover networks worth having. This is the tier to look at if you are amplifying.
QS sits above, aimed at people building a serious front stage, and it needs power and a decent install to show what it does.
The tuning across all of them is forward and lively, which suits a car and works against you if you want neutrality. That is a house sound rather than a fault.
If you want an accurate front stage above all, brands built around that goal are a better starting point. Our piece on whether Alpine speakers are good covers one.
Choosing by what you actually want
If you want bass and nothing else changes, buy a loaded Kicker enclosure and a matched amplifier. This is the highest satisfaction per pound in the whole range.
If you want a complete system upgrade, use Kicker for the low end and choose the front stage on its own merits, which is a more sensible plan than one badge throughout.
If you are replacing blown factory speakers on a budget, CS coaxials do the job and will run from the head unit.
If you are building a front stage properly, KS or QS components with an amplifier and a high pass filter around 80 Hz.
If your vehicle is a boat, a side by side or a motorcycle, the marine and powersports lines are built for it, and using automotive speakers outdoors is a false economy.
What the ratings mean here
Kicker quotes both peak and RMS figures, and only the RMS number should influence your amplifier choice. Peak describes a brief transient that nothing sustains.
Sensitivity is the specification that decides how loud a speaker plays from a given input, quoted in decibels at one watt from one meter. A 91 dB speaker matches an 88 dB one on half the power, and since doubling amplifier power buys only 3 dB, sensitivity is worth reading before wattage.
That matters most if you are running from a head unit, which realistically delivers 18 to 22 watts per channel despite the 50 watt figure on the box. The limit is the car’s 14 volt electrical system rather than marketing alone.
For subwoofers, the number that decides your amplifier is the final impedance after wiring, not the impedance printed on the driver. Two 2 ohm voice coils can present 1 ohm in parallel or 4 ohms in series, and an amplifier not rated for 1 ohm will shut down or fail.
What ruins otherwise good speakers
Clipping, which kills more drivers than excess power does. An amplifier pushed past its limit produces something closer to a square wave, delivering far more sustained heat into the voice coil than music would. A small amplifier turned up too far is more dangerous than a large one set correctly.
Running door speakers full range, which asks them to produce bass they physically cannot and causes the distortion people blame on the speaker.
An unsealed mounting, which lets the front and rear output of the driver meet and cancel, removing your bass before it reaches you.
An enclosure of the wrong volume, which produces a peak followed by an early roll-off, sounding boomy and thin at once. Follow the published volume and port dimensions for your driver rather than buying a universal prefabricated box, since those are built to a size that ships economically rather than to a volume the driver wants. A sealed box gives tighter, more accurate bass and asks for more power. A ported box plays louder around its tuning frequency and falls away faster below it.
Undersized power wire and a poor ground, which is the most common reason a capable amplifier fails to deliver its rating.
Before spending on speakers at all
Deaden the doors. Panel resonance limits every system, and deadening material improves the speakers you already own for less than a set of new ones.
Seal the speaker to the mounting surface with the supplied gasket or a foam ring.
Set the crossovers, since a high pass around 80 Hz on door speakers cleans up the midrange immediately.
Set the gain by ear at the volume you actually use rather than at maximum.
Then buy speakers, and expect the install to matter as much as the choice.
Frequently asked questions
Are Kicker speakers good?
The subwoofers and subwoofer amplifiers are the strong part of the range and the reason the brand has its reputation. The KS and QS component sets are genuinely competitive when amplified. The entry CS coaxials are a sensible factory replacement rather than an enthusiast product.
Which Kicker subwoofer line should I buy?
Comp for a first subwoofer with modest power, CompR for the step where excursion and motor strength justify a larger amplifier, and Solo-Baric L7 for maximum output if you will build the enclosure properly. If you are not building a box, buy a Kicker loaded enclosure instead.
Do Kicker speakers need an amplifier?
The CS coaxials run acceptably from head unit power. The KS and QS tiers need an amplifier to show what they do, and every subwoofer needs one. Bear in mind a head unit rated 50 watts realistically delivers 18 to 22 watts per channel, limited by the car’s electrical system.
What kills car speakers most often?
Clipping, which happens when an amplifier is driven past its limit and starts producing something closer to a square wave. That delivers far more sustained heat into the voice coil than music does, which is why a small amplifier turned up too far destroys more speakers than a large one used sensibly.