The
Kicker SoloXS L7XS 18-Inch 1-Ohm Subwoofer (Model 52L7XS181) is
a Pro-Class, competition-grade square subwoofer built for massive bass volume and extreme power handling. Nicknamed the L7 "Excess", this speaker moves twice as much air as older models and is designed to dominate sound competitions while remaining clean and musical.
-
Square Cone Advantage: The unique square shape gives the speaker more surface area than a standard round 18-inch wheel. More surface area means it pushes a lot more air, resulting in deeper, harder-hitting bass.
-
Glue-Free Recone System: If you push the speaker too hard during a competition and blow it, you can fix it in minutes. The pre-assembled cone, surround, and voice coil simply bolt out and bolt back in using alignment pins—no messy glue required.
-
Impedance Swapping: Unlike older versions, the SoloXS design allows you to swap a 1-ohm recone kit for a 2-ohm kit if your system setup changes.
-
Elite Endurance: It features an aluminum backbone frame (basket) and specialized cooling pathways so it can take continuous high-power abuse without melting or failing.
🛠️ Technical Specifications
The technical specifications highlight the raw size and structural capacity of the 52L7XS181 subwoofer:
| Feature
|
Specification
|
Description
|
|
Power Handling (RMS)
|
4,000 Watts
|
The continuous electrical power the speaker can handle safely.
|
|
Recommended Amp
|
2,000 to 4,000 Watts RMS
|
The ideal amplifier size to get the best performance.
|
|
Voice Coil Configuration
|
Dual 1-Ohm
|
Two internal electrical coils for flexible wiring options.
|
|
Voice Coil Diameter
|
4 Inches
|
A massive aluminum voice coil built to handle immense heat.
|
|
Magnet Weight
|
830 Ounces
|
An ultra-heavy, 11-inch wide triple-stacked ferrite motor.
|
|
Xmax (Linear Excursion)
|
43.1 mm (1.71 inches)
|
How far the cone can safely travel forward and backward.
|
|
Frequency Response
|
16 Hz - 100 Hz
|
It can play incredibly low tones that humans feel rather than hear.
|
|
Mounting Depth
|
13-3/16 Inches (33.5 cm)
|
The depth space required inside the speaker box.
|
|
Cutout Diameter
|
16.5 Inches (41.9 cm)
|
The exact size of the square hole needed to mount it.
|
🧬 Materials & Engineering Details
-
The Cone: Made from a double-pressed pulp (paper) cone. Pressed pulp is highly favored in heavy bass builds because it is lightweight, stiff, and keeps the sound natural.
-
The Surround: Uses a next-generation, giant Nitrile Butadiene Rubber (NBR) surround. This tall rubber border lets the cone stretch forward and backward up to 4.5 inches peak-to-peak without tearing.
-
Suspension & Wiring: Supported by an extra-large dual-spider suspension system made of stout material to keep the voice coil perfectly centered. The power travels through thick, heavily stranded dual tinsel leads.
-
Forced Air Cooling™: Features bottom vents that pull cool air in and push hot air out as the speaker moves up and down, keeping the internal voice coil cool.
-
Heavy-Duty Terminal Blocks: Wiring inputs include a single 8 AWG spring-loaded push terminal alongside a dual 4 AWG terminal block to accommodate massive speaker wire.
📦 Enclosure Recommendations
Because this speaker is optimized for heavy airflow and high-excursion movement, it requires a large, custom-built box to function properly.
-
Box Type: Vented / Ported box only
-
Box Volume: 6.5 to 7.5 cubic feet of internal air space
-
Tuning Frequency: 28 Hz (optimized for deep, low-frequency pressure)
- Port Dimensions: A slot opening of 6.5 x 19.5 inches with a total port length of 27.75 inches.
New Launch
Free shipping Over $99
Sold in last hours
