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Kicker revolutionized the world of bass with their Solo-Baric square subwoofers back in 1992. Since then, engineers at Kicker have fine-tuned this design to perfection, so you can count on powerful, accurate, and reliable performance. The L3 Series subs are the latest to join the Solo-Baric line, and they definitely uphold the family name.

Square woofer means more woofer
The L3 Series 11S15L34 15" sub features the trademark square cone, offering up to 20% more surface area than a round 15" woofer. This added cone surface allows the sub to push more air, and more air movement means louder, more powerful bass. The SoloKon™ polypropylene cone employs a spoked design for extra rigidity without adding extra weight, while the hand-stitched Santoprene surround is reinforced at the corners to help keep cone movement accurate for clean low end. Extra venting in the stamped steel basket keeps the voice coils cool for consistent, hard-hitting bass over the long haul.

DVC versatility
Dual 4-ohm voice coils give you a little more flexibility in fitting this sub into your system as it grows, as well as getting maximum performance from your amplifier. This L3 sub works well in sealed or ported enclosures.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible.

Product Highlights:

  • 15" subwoofer with dual 4-ohm voice coils
  • square SoloKon™ polypropylene cone with Santoprene rubber surround
  • stamped steel basket
  • power range: 250-500 watts RMS (250 watts per voice coil)
  • peak power: 1000 watts
  • frequency response: 25-500 Hz
  • sensitivity: 90.3 dB
  • mounting depth: 8-1/8"
  • sealed box volume: 1.8-5.2 cubic feet
  • ported box volume: 3.0-5.0 cu. ft.
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Kicker Solo-Baric® L3 Series 11S15L34 Reviews

Hands-on research

What's in the box?

Download owner's manual

  • One 15" Square dual 4-ohm voice coil woofer
  • Cutout template (attached to carton)
  • Owner's manual (English/ Spanish/ German/ French)

Product Research

Enclosure Compatibility


Dual Voice Coils: For increased system flexibility, the woofer has two 4Ω voice coils. When the voice coils are wired in parallel the woofer presents a 2Ω load; when wired in series the woofer presents an 8Ω load.

Square Design: By making the Solo-Baric square, Kicker is maximizing the cone area (Sd) for a given size, 16% to 20% more area than a conventional round subwoofer. More cone area means the Solo-Baric L3 moves more air, resulting in louder, deeper bass.

Cone Material: The square SoloKon design is a unique one-piece construction, using polypropylene material that moves as a lightweight piston for improved control. The cone remains rigid, minimizing cone flex and distortion. A rear cone brace integrates into the cone to resist deformation under pressure.

Surround: The tough, flexible Santoprene rubber surround has a long-throw, positive-roll design, which controls extreme cone excursion and is highly tear-resistant. The corners of the surround are ribbed to ensure linear cone motion. The surround is stitched to the reinforced cone edge, making separation between them virtually impossible, even in the harshest conditions.

Spider: The woofer is equipped with a progressive roll, vented poly-cotton spider to ensure linearity at high volume.

Rubber Magnet Boot: A black rubber boot covers the outside edge of the magnet structure to improve the cosmetics of the woofer and protect the magnet from chipping or breaking during installation.

Speaker Terminals: The terminals are spring loaded and nickel plated for solid connections with speaker wire up to 10 gauge.

Break-in Period: Due to the complex nature of Kicker Solo-Baric L3 woofers, they require a break-in period in order to produce optimum low-bass response. The high-performance suspension system makes the speakers very stiff initially. Approximately 2 weeks of daily playing will allow the suspension to break-in and reach its optimum equilibrium. A broken-in subwoofer will exhibit stronger bass performance, smoother response, and greater low-bass extension.

Enclosure Compatibility

Power Handling: The power handling specifications differ according to the type and size of the enclosure. The power handling specifications assume that both voice coils are in use (Both voice coils in a dual voice coil speaker should always be connected).

Sealed Box: Two recommended sealed box volumes are given in the manual, Compact and SQ (ultra sound quality). Any enclosure size between the two recommendations is also acceptable:

  • Compact (minimum enclosure volume): 1.8 cubic feet; power handling up to 500 watts RMS (250 watts per voice coil)
  • SQ (maximum enclosure volume): 5.2 cubic feet; power handling up to 500 watts RMS (250 watts per voice coil)

Vented Box: The manual also lists two vented enclosure recommendations using slot ports:

  • Compact: 3.0 cubic feet; 2.75" x 15.5" port opening; 25.75" port length; power handling up to 500 watts RMS (250 watts per voice coil)
  • SQ: 5.0 cubic feet; 3" x 15.5" port opening; 22" port length; power handling up to 500 watts RMS (250 watts per voice coil)

Cutout: The woofer will not mount in a standard enclosure with a round cutout; instead the required opening is square, 13-5/8" x 13-5/8" (approximately). A cutout template is integrated into the box lid.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.