Description
Included in this kit
This bundle includes a KICKER 53CXA15001 CXA1500.1 1500W RMS Mono Class D Subwoofer Amplifier, and a Kicker 49L7X122 - SoloX L7X 12-Inch (30cm), 3" Coil, Ferrite Competition Subwoofer, 2-Ohm.
1x KICKER 53CXA15001 CXA1500.1 1500W RMS Mono Class D Subwoofer Amplifier (53CXA15001)
KICKER 53CXA15001 CXA1500.1 1500W RMS Mono Class D Subwoofer Amplifier
The CXA1500.1 powers a dedicated bass channel with 1500 watts RMS at 1 ohm. Its FIT+ inputs accept factory or aftermarket radio signals, while gain matching and adjustable bass controls help integrate the amplifier with your subwoofer system.
Features and system use
- Deliver 1500W RMS at 1 ohm, 1000W at 2 ohms, or 550W at 4 ohms for flexible subwoofer matching.
- FIT+ accepts speaker-level signals up to 40V to integrate with a wide range of factory radios.
- Shape bass with a variable 50–200Hz low-pass crossover and 0–6dB KickEQ boost at 40Hz.
- A 15Hz subsonic filter and active thermal rollback help protect the system during demanding playback.
- Use the gain-match LED for setup and add the optional CXARC remote for convenient bass adjustment.
Integration
Full-range outputs support system expansion. The CXARC bass remote is compatible and sold separately.
| RMS power at 14.4V, less than 1% THD+N | 1500W x 1 at 1 ohm; 1000W x 1 at 2 ohms; 550W x 1 at 4 ohms |
| Dynamic power | 1650W at 14.4V, less than 10% THD+N |
| Frequency response | 15–200Hz, +0/−6dB |
| Low-pass crossover | 50–200Hz, 24dB/octave |
| Subsonic filter | 15Hz, 24dB/octave |
| Bass boost | 0–6dB at 40Hz |
| Dimensions (H x L x W) | 2-7/32 x 11-13/32 x 6-27/32 inches |
1x Kicker 49L7X122 - SoloX L7X 12-Inch (30cm), 3" Coil, Ferrite Competition Subwoofer, 2-Ohm (49L7X122)
49L7X122 – 12" SoloX® L7X™ Ferrite Competition Subwoofer (2Ω DVC, 1000–2000W RMS)
The KICKER SoloX L7X is the company's most advanced bass platform, built with extreme power handling and a field-serviceable design for serious SPL and demo vehicles. The 12-inch 49L7X122 brings that flagship technology to a dual 2Ω configuration, giving system designers more flexibility when matching amplifiers and building multi-sub arrays.
Overview
High-Output 12" with Dual 2Ω Coils
The 49L7X122 shares the same SoloX® L7X™ motor design: a triple-stacked ferrite magnet surrounding a hyper-extended pole piece. This architecture generates a strong, linear magnetic field to keep the 3-inch voice coil under control at large excursion, translating amplifier power into serious low-end output.
With 1000–2000 watts RMS of recommended power and a 2Ω dual voice coil configuration, the 12" L7X122 gives you more wiring options for pairing with modern monoblock amplifiers and building multi-sub systems without sacrificing performance in the 20–100 Hz range.
- Triple-stacked ferrite magnet with 8-11/16" (22 cm) diameter and 406 oz (11.5 kg) total magnet weight.
- Hyper-extended pole piece to improve linearity and heat management at high excursion.
- Engineered for extreme low-end output in compact, high-power enclosures.
Construction
Competition-Grade Materials & Geometry
The SoloX L7X 12" uses a cast-aluminum basket, double-pressed pulp cone, and a heavy-duty, UV-resistant Santoprene® surround. KICKER's square cone profile with ribbed corners increases effective cone area and helps manage cone-edge stress, channeling excursion into SPL and responsiveness.
- Double-pressed pulp cone for stiffness and strength under extreme loads.
- Heavy-duty Santoprene® surround with square cone and ribbed corners.
- Cast-aluminum basket and custom rubber magnet boot for durability and protection.
What Makes SoloX® L7X™ Different
Key Design Highlights
Motor & Suspension
3" Voice Coil & Dual-Spider Stability
The 49L7X122 uses a 3-inch (75 mm) voice coil with a 2.5" (62.5 mm) winding width and a dual-spider suspension system. This design keeps the coil centered and stable across large excursions, while the cone and surround handle the mechanical demands of high SPL playback.
- 3" (75 mm) voice coil with 2.5" (62.5 mm) winding width.
- Dual-spider suspension for high-excursion control.
- Double-pressed pulp cone for stiffness and durability.
- Heavy-duty Santoprene® surround with square geometry and ribbed corners.
Cooling & Reliability
Forced-Air Cooling™ for Competition Use
The SoloX L7X motor and basket structures are designed to promote airflow through and around the voice coil, aiding heat dissipation. This helps preserve performance and reliability under repeated high-power sessions in SPL and demo vehicles.
- Motor and pole geometry optimized for airflow and heat reduction.
- Air moves through the motor structure to help cool critical components.
- Designed for extended high-power use in real competition environments.
Wiring & Connectivity
2Ω Dual Voice Coils for System Flexibility
The 49L7X122 features a 2Ω dual voice coil (DVC) configuration, providing multiple wiring options for matching modern monoblock amps or building multi-sub arrays. The SoloX terminal system is built to handle large-gauge wiring in tight spaces.
- 2Ω DVC design for flexible wiring with a wide range of amplifier combinations.
- Single 8 AWG spring-loaded terminal for primary connection.
- Dual 8 AWG terminal block for fast series / parallel wiring in complex systems.
Field-Replaceable Recone
Built to Be Rebuilt, Quickly
In high-output systems, recones are part of ownership. The SoloX L7X platform makes that process faster and more consistent with a pre-assembled recone kit and a no-glue process on 10–18" models, reducing downtime between rounds or shows.
- Pre-assembled cone, coil, and spider recone assemblies.
- No-glue recone process for 10–18" SoloX L7X subs.
- Surround compression system and bolt-on spider landing with alignment shims.
| Model | KICKER SoloX® L7X™ 49L7X122 – 12" Competition Subwoofer |
| Size | 12" (30 cm) |
| Rated Impedance | 2Ω DVC (dual 2-ohm voice coils) |
| Recommended Amplifier Power | 1000–2000 watts RMS |
| Frequency Response | 20–100 Hz |
| Magnet Diameter | 8-11/16" (22 cm) |
| Total Magnet Weight | 406 oz (approx. 11.5 kg) |
| Voice Coil Diameter | 3" (75 mm) |
| Voice Coil Winding Width | 2.5" (62.5 mm) |
| Top Plate Thickness | 0.5" (13 mm) |
| Xmax (One-Way) | 1.25" (31.25 mm) |
| Mounting Cutout Diameter | 11-1/16" (28.1 cm) |
| Mounting Depth | 10-1/8" (25.7 cm) |
| Basket | Cast-aluminum basket with custom rubber magnet boot |
| Cone Material | Double-pressed pulp cone |
| Surround | Heavy-duty UV-resistant Santoprene® surround |
| Suspension | Dual-spider suspension system |
| Cooling | Forced-Air Cooling™ motor design |
| Terminals | Single 8 AWG terminal plus dual 8 AWG terminal block |
| Vented Box Volume | 3.0 ft³ (84.9 L) |
| Port Opening | 3.5" x 13" (9 x 33 cm) |
| Port Length | 36.5" (93 cm) |
| Tuning Frequency | 31 Hz (approximate) |
The SoloX L7X 12" requires a strong, properly braced vented enclosure to perform as designed. For best results, follow KICKER's recommended net volume and port dimensions, and use high-quality construction suitable for competition-level subwoofers.
Additional Data
Engineering Resources
- Thiele/Small parameters for 49L7X122 (manufacturer specification set).
- CNC cutout files for L7X baffle design (L7X.DXF and L7X.SLDPRT formats).
- 49L7X12 dimension sheet for detailed mounting and cutout measurements.
This subwoofer is designed for high-output competition and demo systems. Proper electrical upgrades, amplifier matching, enclosure design, and installation practices are critical. Professional installation is strongly recommended for best performance and reliability.