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The Kicker SoloX 12″ L7X is a high-excursion competition subwoofer built for ultra-deep, powerful bass. It features KICKER’s signature triple-stacked ferrite magnet, a 3″ aluminum voice coil, and dual-spider suspension. Designed for high output and thermal stability, it's ideal for serious car audio builds that demand maximum bass performance.

Key Benefits

• Extreme power handling: Rated for 1,000–2,000 W RMS according to KICKER’s spec sheet.
• Long excursion capability: With an Xmax of 1.25″ (31.25 mm), it can move a lot of air for very low frequencies.
• Efficient cooling: Uses KICKER’s Forced-Air Cooling™ to keep the voice coil temperature down and improve reliability.
• Serviceable design: Field-replaceable recone kit (cone / voice coil / spider) makes maintenance easier.

Technical Specifications

• Impedance: Dual 2 Ω (DVC) for the 49L7X122 model.
• Power Handling (RMS): 1,000–2,000 W.
• Frequency Response: 20–100 Hz.
• Voice Coil: 3″ (75 mm) aluminum former.
• Magnet: Triple-stacked ferrite, 406 oz (≈ 11.5 kg).
• Xmax: ±1.25″ / 31.25 mm.
• Mounting Cutout: 11-1/16″ (28.1 cm).
• Mounting Depth: 10-1/8″ (25.7 cm).
• Recommended Enclosure: 3 cu ft (84.9 L) vented (ported).
• Tuning Frequency (Port): 31 Hz.

Installation & Compatibility

Best used in ported (vented) enclosures, tuned to ~31 Hz, to get optimal bass output. 

Needs a very powerful amplifier due to its high RMS rating (1,000–2,000 W), so pairing with a high-current mono or four-channel amp is common.

Because of its large magnet and excursion, make sure there’s enough mounting depth (~10.1″) and robust bracing in your box to prevent flexing.

The Forced-Air Cooling helps reduce heat, but good airflow inside the enclosure is still recommended to maintain long-term reliability.

FAQS

•  How much power does the Kicker SoloX 12 need?
  The SoloX 12 is a powerhouse and performs best with a high-output amplifier that matches its RMS rating. Livewire Audio carries several amps suited for extreme bass setups.
• Is the Kicker SoloX 12 good for deep bass?
  Yes. This subwoofer is engineered for massive low-frequency output, delivering deep, hard-hitting bass perfect for enthusiasts and bass competitions.
• What enclosure works best with the SoloX 12?
  Kicker recommends either a vented or sealed box depending on your bass preference. Vented boxes deliver more boom, while sealed boxes offer tighter, controlled bass.
• Can I use the SoloX 12 in daily driving setups?
  Definitely. While it's competition-ready, many users also install it in daily vehicles to enjoy powerful bass with reliable performance.