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 49L7X182 SoloX L7X 18-Inch (48cm), Ferrite Competition Subwoofer, 2-Ohm DVC.
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 49L7X182 SoloX L7X 18-Inch (48cm), Ferrite Competition Subwoofer, 2-Ohm DVC (49L7X182)
49L7X182 – 18" SoloX® L7X™ Ferrite Competition Subwoofer (2Ω, 1000–2000W RMS)
The legend returns. The 18-inch SoloX® L7X™ 49L7X182 is KICKER's flagship competition subwoofer, built around an overbuilt ferrite motor, massive excursion capability, and a field-replaceable recone system so you can push harder, fix faster, and get back in the lanes. It is engineered for ultra-deep, high-output bass and serious SPL builds.
Overview
Extreme Motor Design for Monster Performance
At the heart of the SoloX® L7X™ is a motor like no other. A massive, triple-stacked ferrite magnet surrounds a hyper-extended pole piece, producing an enormous, highly linear magnetic field that keeps the 3-inch voice coil under control even at extreme excursion. The result is ultra-deep bass at very high volume, with the thermal capacity and mechanical stability required for modern competition systems.
With a recommended 1000–2000 watts RMS and a 2Ω configuration, the 49L7X182 is designed to pair with serious power amplifiers and large vented enclosures, turning electrical headroom into usable SPL.
- 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 heat dissipation at high excursion.
- Engineered for ultra-deep, high-output bass in high-power competition systems.
Construction
Built to Survive Real Competition Use
From the cast-aluminum basket to the double-pressed pulp cone and heavy-duty Santoprene® surround, every part of the L7X is built to handle extreme excursion and mechanical stress. The subwoofer is designed not just for peak numbers, but for repeatable performance over multiple burps and demos.
- Double-pressed pulp cone for strength and rigidity under high pressure.
- Heavy-duty UV-resistant Santoprene® surround with KICKER's square cone and ribbed corners.
- Cast-aluminum basket and custom rubber magnet boot for strength and protection.
What Makes SoloX® L7X™ Different
Key Design Highlights
Motor & Suspension
Built Around a 3" Voice Coil & Dual-Spider System
The 49L7X182 uses a 3-inch (75 mm) voice coil on an aluminum former, supported by a dual-spider suspension. This combination maintains precise coil alignment across the subwoofer's long excursion range, while the heavy-duty cone and surround keep the moving assembly under control.
- 3" (75 mm) voice coil with 2.5" (62.5 mm) winding width for high thermal capacity.
- Dual-spider suspension system for improved stability at high excursion.
- Double-pressed pulp cone for stiffness and durability.
- Heavy-duty Santoprene® surround with square cone and ribbed corners for maximum air movement.
Cooling & Reliability
Forced-Air Cooling™ for Longer, Harder Play
High-power SPL applications generate extreme heat. KICKER's Forced-Air Cooling™ system moves air through the motor and around the voice coil, helping to carry heat away from critical components and extending reliability under repeated heavy use.
- Motor and pole piece geometry optimized for both output and thermal management.
- Cooling airflow paths designed into the basket and motor structure.
- Engineered for competition-level power over extended sessions.
Wiring & Connectivity
Built for Big Power & Flexible Wiring
Wiring big amplifiers to a competition sub shouldn't be a fight. The SoloX terminal system makes it simple to run large-gauge cable and configure series or parallel connections quickly in the field.
- Single 8 AWG spring-loaded terminal for primary connection.
- Dual 8 AWG terminal block above the main terminals for series/parallel wiring.
- 2Ω rated impedance to pair with high-output monoblock amplifiers.
Field-Replaceable Recone
Serviceability Designed In
Competition subwoofers get pushed to the limit. The SoloX L7X platform is designed to be brought back to life quickly with a field-replaceable recone kit. Using a surround compression system, bolt-on spider landing, and alignment shims, you don't need to break out glue to rebuild 10–18" models.
- Pre-assembled cone, voice coil, and spider recone kit.
- No gluing required for 10–18" L7X recone kits.
- Designed to minimize downtime between rounds or demo sessions.
| Model | KICKER SoloX® L7X™ 49L7X182 – 18" Competition Subwoofer |
| Size | 18" (approx. 46 cm) |
| Rated Impedance | 2Ω |
| Recommended Amplifier Power | 1000–2000 watts RMS |
| Frequency Response | 18–100 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) |
| 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 | 7.5 ft³ (214.5 L) |
| Port Opening | 6.5" x 19.5" (16.5 x 49.5 cm) |
| Port Length | 27.75" (70.5 cm) |
| Tuning Frequency | 28 Hz (approximate) |
The SoloX L7X 18" 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 materials and construction methods appropriate for competition-level subwoofers.
Additional Data
Engineering Resources
- Thiele/Small parameters for 49L7X182 (manufacturer specification set).
- CNC cutout files for L7X baffle design (L7X.DXF and L7X.SLDPRT formats).
- 49L7X18 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.