Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass

Ultra-Deep Bass Performance with Revolutionary Square Design Technology

Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass
Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass
Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass
Kicker SoloX L7X 8 inch Subwoofer | High - Power Competition Bass - Kicker Subwoofer for car audio systems
Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass
Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass
Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass
Kicker SoloX L7X 8 inch Subwoofer | High - Power Competition Bass - Kicker Subwoofer for car audio systems

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Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass

Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass

Product Information

Overview

Kicker SoloX L7X 8 inch Subwoofer

Overview

The Kicker SoloX L7X 8-inch subwoofer delivers the legendary competition performance of the SoloX family in a compact form factor perfect for space-constrained installations. This third-generation L7X model maintains the same revolutionary engineering that has dominated SPL competitions for over two decades, delivering 800W RMS power handling through a scaled triple-stacked ferrite magnet system while preserving the innovative field-replaceable recone technology that protects your investment under demanding conditions.

Born from the legendary competition heritage of Alma Gates' record-breaking "Beast" Bronco, the compact SoloX 8" continues Kicker's tradition of SPL dominance with installations contributing to systems achieving over 180 dB. The signature square cone design provides 20% more cone area than conventional round 8-inch subwoofers, maximizing acoustic output from the smaller footprint while the proprietary Forced Air Cooling™ technology manages thermal demands in tight installation spaces.

Available in dual 1-ohm (49L7X81) and dual 2-ohm (49L7X82) voice coil configurations, the 8-inch L7X accommodates various amplifier and system designs while maintaining the uncompromising performance standards that have made SoloX the choice of world record holders. This compact option enables serious bass enthusiasts to experience SoloX technology in vehicles and installations where space is at a premium without sacrificing the competition-grade performance legacy.

Specifications
Specifications Icon

Specifications

  • Model Numbers: 49L7X81 (Dual 1Ω) / 49L7X82 (Dual 2Ω)
  • Power Handling: 800W RMS / 1600W Peak
  • Frequency Response: 30-100 Hz
  • Sensitivity (2.83V/1m): 80.5 dBXmax
  • Linear Excursion: 24mm (0.94 inches)
  • Voice Coil Diameter: 2.5-inch (62.5mm) high-temperature copper
  • Voice Coil Configuration: Dual Voice Coil - 1Ω or 2Ω options
  • Magnet Structure: Triple-stacked ferrite magnet
  • Cone Material: Double-pressed pulp, square geometry
  • Surround: Ultra-long-throw Santoprene rubber
  • Mounting Depth: 7.91 inches (201mm)
  • Overall Diameter: 8.98 inches (228mm)
  • Cutout Dimensions: 7-1/16" square opening
  • Weight:14.1 lbs (6.4 kg)
  • Recommended Enclosure:1.25-1.75 cubic feet ported, 35-40 Hz tuning

Features
Features Icon

Features:

Competition-Grade Motor Assembly

The Kicker Solo X 8 features a revolutionary triple-stacked ferrite magnet system optimized for its compact size, delivering exceptional magnetic force relative to its footprint. This precision-engineered motor structure creates a powerful linear magnetic field, enabling the subwoofer to maintain control and accuracy throughout its 24mm excursion range. The hyper-extended pole piece design maximizes magnetic efficiency while providing exceptional heat dissipation characteristics essential for sustained high-power operation in space-constrained installations.

Forced-Air Cooling Technology

Heat management becomes even more critical in compact subwoofer designs, and the Solo X 8 addresses this challenge with proprietary Forced-Air Cooling technology specifically optimized for smaller enclosures. This innovative system actively circulates air through the motor structure, significantly reducing operating temperatures and extending component life despite the concentrated power density. The cooling system enables the compact subwoofer to handle substantial power levels continuously without thermal compression or performance degradation.

Field-Replaceable Recone System

The Solo X 8 features the same unique field-replaceable recone kit technology found in larger SoloX models, eliminating downtime when repairs become necessary. Utilizing an exclusive surround compression system and a bolt-on spider landing with precision alignment shims, the pre-assembled cone assembly can be replaced in minutes without the need for gluing or specialized tools. This revolutionary design keeps your compact system operational as you push performance boundaries in space-limited applications.

Dual-Spider Suspension Control

Precision cone control throughout the entire 24mm excursion range is achieved through a scaled dual-spider suspension system perfectly tuned for the 8-inch format. The engineered spider landing provides stable control of the cone assembly during its full travel, preventing unwanted resonances and maintaining linear performance despite the compact size. This sophisticated suspension design enables impressive excursion capability while preserving sound quality in space-constrained installations.

Advanced Cone Construction

The double-pressed pulp cone construction provides optimal rigidity-to-weight ratio specifically engineered for the 8-inch format, delivering maximum efficiency and minimal distortion from the compact footprint. The cone assembly incorporates KICKER's patented square design with reinforced ribbed corners that maintain structural integrity during high-excursion operation. The ultra-long-throw Santoprene surround delivers exceptional durability and maintains consistent performance across temperature extremes while accommodating the impressive excursion in the smaller form factor.

Professional Terminal System

Installation flexibility reaches new heights with the innovative SoloX terminal configuration scaled for the 8-inch model. Each spring-loaded terminal accommodates up to 8 AWG wire for maximum power transfer relative to the subwoofer's size, while dual terminal blocks above each primary terminal enable easy series or parallel wiring configurations. This sophisticated connection system ensures optimal impedance matching and reliable electrical connections under extreme conditions, maintaining professional installation standards regardless of the compact footprint.

Video

Product Demo Video

Related Products
Owners Manual

Every Kicker SoloX L7X 8 inch Subwoofer | High-Power Competition Bass ships with a detailed factory owner’s manual that covers wiring, enclosure recommendations, specifications, and safe operating practices. This document is the official reference for setup and maintenance, ensuring you get the most performance and longevity out of your subwoofer.

We recommend reviewing the manual before installation to:

  • Confirm the correct wiring configuration for your voice coil option (Dual 1Ω or Dual 2Ω).
  • Review enclosure guidelines to match the driver’s performance potential.
  • Understand safe power handling and gain-setting practices to protect your investment.

Keeping this manual handy ensures you have quick access to factory specifications and diagrams, making it easier to fine-tune your system or service the subwoofer when needed.

Performance & Tools

Recommended Amplifier
Recommended Enclosures EBP Calculator

EBP Calculator

Choosing the right enclosure for your subwoofer isn’t guesswork — it’s science. The Efficiency Bandwidth Product (EBP) is a simple calculation that uses a driver’s Fs (resonance frequency) and Qes (electrical Q) to determine whether it performs best in sealed, ported, or both types of boxes.

  • EBP under 50 → Works best in sealed enclosures for tighter, more controlled bass.
  • EBP over 100 → Better suited for ported designs where efficiency and output are the priority.
  • EBP between 50–100 → Flexible enough to perform well in either design, depending on system goals.

Use our interactive calculator below to compare subwoofers, see where each model falls, and make an informed decision on the best enclosure type for your setup.

Efficiency Bandwidth Product (EBP)

Fs (Hz): 39.6

Qes: .5

Sealed Either Ported
What is EBP? 🛈

Xmax (mm): 31.25

Mounting Depth (inches): 9.4375

Customer Reviews

4.9

Based on 13 reviews

Frequently Asked Questions

What makes the Kicker Solo X 8" different from other 8-inch subwoofers?

How much power do I need to drive the Solo X 8" subwoofer?

Will this subwoofer fit in tight installation spaces?

Should I choose the 1-ohm or 2-ohm voice coil version?

What type of enclosure works best with the Solo X 8"?

Can I use this subwoofer for daily driving or is it just for competition?

How does the modular recone system work on the 8" model?

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