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Kick it old school with the Kicker Solo Classic 09S15C4 15" subwoofer, which combines the timeless design of the original round Solo-Baric subs with new technology and materials. The Solo Classic uses the SoloKon™ one-piece cone and other innovations to deliver reliable performance that lives up to the Kicker name. Best of all, this sub works best in a very small sealed enclosure, so it's a great candidate for compact cars and other space-challenged vehicles.

The SoloKon cone uses a one-piece, polypropylene design for exceptional rigidity and accurate response, and the ribbed rubber surround maintains control over cone travel. The stamped steel basket, stitched surround, and spring-loaded terminals made the original Solo-Baric an instant smash the first time around, so Kicker incorporates them into the Solo Classic for durability and hard-hitting bass that won't give up.

The sub's high-temperature, dual 4-ohm voice coils will withstand the stress of your music's demands — they allow you to wire the sub for 2-ohm impedance to draw maximum power from your amp, or for 8-ohms in a multi-sub system. Combine the Solo Classic with a small sealed enclosure, a compatible amp and some wiring, and get back to the fundamentals of great bass.

Product Highlights:

  • 15" subwoofer with dual 4-ohm voice coils
  • one-piece polypropylene cone
  • ribbed rubber surround
  • power handling: 100-750 watts RMS (375 watts per coil)
  • 1,500 watts peak power handling
  • frequency response: 18-100 Hz
  • sensitivity: 88 dB
  • top-mount depth: 7-7/8"
  • sealed box volume: 1.25 cubic feet
  • 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 Classic 09S15C4 Reviews

Average Customer Review:

1 Review


Written by: CBased from St. Louis Mo on March 23, 2014

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I have 1 in a sealed box that is 1.5cubic ft. It's amazing. It's super loud and flexes my tahoe. The sound that comes from it is great. I just wish it got lower.

Pros: Amazingly loud, doesn't require a lot of space

Cons: Doesn't hit all of the low notes.

Hands-on research

What's in the box?

Download owner's manual

  • One 15" Round DVC woofer
  • Owner's Manual (English/ Spanish/ German/ French)
  • Template on box

Product Research

Enclosure Compatibility


Dual Voice Coils: For increased system flexibility, the woofer has two 4 ohm voice coils. When the voice coils are wired in parallel, the woofer presents a 2 ohm load. When the voice coils are wired in series, the woofer presents an 8 ohm load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 4ohm load.

Cone Material: The 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.

Surround: The tough, flexible rubber surround has a long-throw, positive-roll design, which controls extreme cone excursion and is highly tear-resistant. 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.

Basket Assembly: The SoloClassic utilizes a high strength stamped steel basket which features a low-profile open design and provides a solid foundation for the precision-aligned motor assembly.

Dual Voice Coil: The dual voice coils sustain enormous cone excursion and provide flexible impedance matching options. The high-temperature Polyimide Film Voice Coil former improves sonic and conducive properties, and prevents thermal-electrical meltdown.

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. If the boot is removed, the magnet diameter is 6.646 inches.

Speaker Terminals: The terminals are spring loaded and nickel-plated for solid connections with heavy gauge speaker wire. The terminals will accept pin connectors, single banana plugs, of bare wire up to 10 gauge.

Break-in Period: Due to the complex nature of Kicker SoloClassic 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 out-of-the-box. 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

Sealed Box Volume: Kicker recommends mounting the SoloClassic 15" woofer only in a sealed enclosure; volume 1.25 cubic feet.

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.