Description
Included in this kit
This bundle includes a KICKER 53CXA15001 CXA1500.1 1500W RMS Mono Class D Subwoofer Amplifier, a Kicker 46CK4 K-Series Complete 4-AWG Amplifier Connection Kit W/ 2-Channel RCA Interconnects, and a Kicker 49L7X152 - SoloX L7X 15-Inch (38cm), 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 46CK4 K-Series Complete 4-AWG Amplifier Connection Kit W/ 2-Channel RCA Interconnects (46CK4)
KICKER® complete amp kits feature top-quality Hyper-Flex power, ground and turn-on cables. K Series speaker wire and interconnects are also included, as is a heavy-duty AFS fuse holder and fusing. Insulated crimp connectors and zip ties come in the kit as well.
4AWG 2-Channel Amp Kit
This Complete Four Gauge Amp Kit comes complete with Full Spec wire, hardware, fusing and signal cable.
Hooking up your amplifier is easy with this complete amp kit. The best hardware, signal and power cable comes in one convenient package.
1x Kicker 49L7X152 - SoloX L7X 15-Inch (38cm), 3" Coil, Ferrite Competition Subwoofer, 2-Ohm (49L7X152)
49L7X152 – 15" SoloX® L7X™ Ferrite Competition Subwoofer (2Ω DVC, 1000–2000W RMS)
The KICKER SoloX L7X is the brand's most advanced bass platform to date, with extreme power handling and a field-serviceable design aimed directly at serious SPL and demo builds. The 15-inch 49L7X152 brings this flagship technology to a dual 2Ω voice coil configuration, ideal for a wide range of amplifier and system layouts.
Overview
High-Excursion 15" with Dual 2Ω Coils
The 49L7X152 shares the same SoloX® L7X™ motor design: a triple-stacked ferrite magnet wrapped around a hyper-extended pole piece. This creates a strong, linear magnetic field to keep the 3-inch coil under control at large excursion, delivering deep, loud bass with authority.
With 1000–2000 watts RMS of recommended power and a 2Ω dual voice coil configuration, the 15" L7X152 offers flexible wiring options to match a variety of monoblock amplifiers and multi-sub setups without sacrificing output capability in the 20–100 Hz band.
- Triple-stacked ferrite magnet with 8-11/16" (22 cm) diameter and 406 oz (11.5 kg) total magnet weight.
- Hyper-extended pole piece for improved linearity and better heat dissipation at high excursion.
- Engineered for extreme low-end output in high-power SPL and demo systems.
Construction
Competition-Grade Materials & Geometry
The SoloX L7X platform uses a cast-aluminum basket, double-pressed pulp cone, and heavy-duty, UV-resistant Santoprene® surround. KICKER's square cone with ribbed corners is designed to maximize cone area and control cone-edge motion, translating excursion into SPL without compromising longevity.
- 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 Suspension
The 49L7X152 uses a 3-inch (75 mm) voice coil with a 2.5" (62.5 mm) winding width, supported by a dual-spider suspension system for alignment and stability. The cone and surround are built to channel that excursion into real, usable output.
- 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 Duty
Heat is one of the biggest threats to any competition subwoofer. The SoloX L7X motor is designed to move air through the structure, promoting better thermal management and helping to preserve performance and reliability over time.
- Motor and pole piece designed for airflow and heat reduction.
- Air moves through motor and basket structures to help cool the coil.
- Optimized for repeated high-power use in SPL and demo vehicles.
Wiring & Connectivity
2Ω Dual Voice Coils for Flexible System Design
The 49L7X152 uses a 2Ω dual voice coil (DVC) configuration, opening up multiple wiring options for matching modern monoblock amplifiers and multi-sub arrays. The SoloX terminal system simplifies large-gauge connections in high-power builds.
- 2Ω DVC design for flexible wiring with a range of amplifier combinations.
- Single 8 AWG spring-loaded terminal for primary connection.
- Dual 8 AWG terminal block for fast series / parallel wiring.
Field-Replaceable Recone
Designed to Be Rebuilt, Fast
When a sub sees real competition use, recones are part of the game. The SoloX L7X system is built so recones are as fast and consistent as possible, using a pre-assembled recone kit and a no-glue process on 10–18" models to minimize downtime.
- 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™ 49L7X152 – 15" Competition Subwoofer |
| Size | 15" (38 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 | 13-3/4" (34.9 cm) |
| Mounting Depth | 11-9/16" (29.3 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 | 5.0 ft³ (141.6 L) |
| Port Opening | 4.25" x 16.5" (11 x 42 cm) |
| Port Length | 34.75" (88 cm) |
| Tuning Frequency | 30 Hz (approximate) |
The SoloX L7X 15" requires a large, 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 49L7X152 (manufacturer specification set).
- CNC cutout files for L7X baffle design (L7X.DXF and L7X.SLDPRT formats).
- 49L7X15 dimension sheet for detailed mounting and cutout measurements.
This subwoofer is designed for high-output competition systems. Proper electrical upgrades, amplifier matching, enclosure design, and installation practices are critical. Professional installation is strongly recommended for best performance and reliability.