53CXA20001 KICKER CX Series 2000W Mono Class D Subwoofer Amplifier 1-Ohm
Massive Bass Power. Compact CXA Performance.
Power your high-output subwoofer system with the KICKER 53CXA20001 CXA2000.1 Mono Class-D Amplifier. Delivering an impressive 2000 watts RMS at 1 ohm, this powerful amplifier combines serious bass performance with a compact chassis designed for modern car audio installations.
Whether you're building a dual-subwoofer system, upgrading a high-performance loaded enclosure, or powering a single high-output subwoofer, the CXA2000.1 provides the flexibility to match a variety of bass systems.
With 1000 watts RMS at 4 ohms, 1500 watts RMS at 2 ohms, and 2000 watts RMS at 1 ohm, the amplifier delivers substantial power across multiple subwoofer configurations. Its Class-D design helps deliver this output efficiently while keeping the chassis compact.
Measuring just 11.42 inches long, 6.85 inches wide, and 2.20 inches tall, the CXA2000.1 offers impressive power density for an amplifier in the 2000-watt class.
A built-in Gain-Match LED helps simplify system setup by providing a visual reference when matching the source unit's output signal to the amplifier. The 24dB Linkwitz-Riley crossover and fixed 15Hz subsonic filter provide additional control over the frequencies delivered to your subwoofers.
Advanced thermal management helps protect the amplifier during demanding listening sessions. Thermal rollback begins around 167°F (75°C), gradually reducing output to help manage internal temperatures, while thermal protection activates at approximately 185°F (85°C).
For additional convenience, the CXA2000.1 supports the optional KICKER CXARC Remote Bass Control, allowing you to adjust subwoofer level from the driver's seat.
From powerful daily-driver systems to demanding multi-subwoofer installations, the KICKER CXA2000.1 delivers the output and control needed for serious bass performance.
Key Features
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2000W RMS at 1 Ohm: High-output mono power for demanding subwoofer systems.
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Flexible Power Ratings: Delivers 1000W RMS at 4 ohms, 1500W RMS at 2 ohms, and 2000W RMS at 1 ohm.
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2200W Dynamic Power: Additional dynamic output capability at 1 ohm, separate from the continuous RMS rating.
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Compact Class-D Design: Substantial power from a chassis measuring just 290mm long.
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0-Gauge Power Inputs: Designed to accommodate large-gauge power and ground wiring for high-output installations.
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Gain-Match LED: Helps match the source unit's signal level to the amplifier during setup.
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24dB Linkwitz-Riley Crossover: Provides steep frequency filtering for subwoofer integration.
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Fixed 15Hz Subsonic Filter: Helps reduce extremely low-frequency signals and unnecessary subwoofer excursion.
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Advanced Thermal Rollback: Begins reducing output around 167°F (75°C) to help control operating temperature.
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Thermal Protection: Activates at approximately 185°F (85°C).
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Start/Stop Compatible: Designed to remain operational through supported vehicle voltage drops down to 7 volts.
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Dual Speaker Terminal Pairs: Provides two positive and two negative speaker connections for convenient subwoofer wiring.
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Remote Bass Ready: Compatible with the optional KICKER CXARC remote bass knob, sold separately.
Amplifier Power Ratings
| Final Speaker Impedance | RMS Power Output |
|---|---|
| 4 Ohms | 1000W x 1 |
| 2 Ohms | 1500W x 1 |
| 1 Ohm | 2000W x 1 |
| 1 Ohm Dynamic | 2200W |
Important: The 2200W dynamic rating represents dynamic output capability and should not be confused with the amplifier's continuous 2000W RMS rating at 1 ohm.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | KICKER |
| Model Number | 53CXA20001 |
| Model Name | CXA2000.1 |
| Series | CXA |
| Amplifier Type | Mono Subwoofer Amplifier |
| Amplifier Class | Class D |
| RMS Power at 4 Ohms | 1000W x 1 |
| RMS Power at 2 Ohms | 1500W x 1 |
| RMS Power at 1 Ohm | 2000W x 1 |
| Dynamic Power at 1 Ohm | 2200W |
| Minimum Rated Impedance | 1 Ohm |
| Crossover | 24dB Linkwitz-Riley |
| Subsonic Filter | Fixed 15Hz |
| Gain Adjustment | Gain-Match LED |
| Power and Ground Inputs | 0-Gauge |
| Speaker Outputs | Two Positive/Negative Terminal Pairs |
| Thermal Rollback | Approximately 167°F / 75°C |
| Thermal Protection | Approximately 185°F / 85°C |
| Start/Stop Compatibility | Down to 7V |
| Remote Bass Control | KICKER CXARC Compatible, Sold Separately |
Amplifier Dimensions
| Measurement | Millimeters | Inches |
|---|---|---|
| Length | 290mm | 11.42" |
| Width | 174mm | 6.85" |
| Height | 56mm | 2.20" |
The compact chassis makes the CXA2000.1 easier to incorporate into custom amplifier racks, trunk installations, and other locations where space is limited.
Always verify available mounting clearance and allow adequate room for ventilation and cable connections.
Installation and Compatibility
The KICKER CXA2000.1 is designed to power compatible subwoofer systems with a final impedance of 1, 2, or 4 ohms.
Its 0-gauge power and ground inputs accommodate large-gauge wiring appropriate for a high-output amplifier. Proper wire sizing, fuse protection, grounding, and electrical system capacity are especially important when installing an amplifier capable of producing 2000 watts RMS.
The amplifier features two positive and two negative speaker terminals to simplify connections for supported subwoofer configurations. These terminals are outputs of the same mono amplifier channel, not independent amplifier channels.
For vehicles equipped with automatic engine start/stop technology, the CXA2000.1 is designed to continue operating through supported voltage drops down to 7 volts.
Install the amplifier in a secure, well-ventilated location and follow KICKER's recommended wiring, mounting, and fuse-protection requirements.
Pro Audio Center Expert Recommendation
The KICKER 53CXA20001 is an excellent choice for customers building a serious subwoofer system that demands substantial, reliable power.
For a 1-ohm setup, pair the amplifier with a subwoofer system capable of handling approximately 2000 watts RMS. At 2 ohms, look for a system suited to 1500 watts RMS, or approximately 1000 watts RMS at 4 ohms.
Because of the amplifier's high output, we recommend evaluating the vehicle's charging system, battery capacity, and power wiring before installation. Proper electrical support is essential for achieving consistent performance.
For convenient bass adjustment, add the KICKER 53CXARC Remote Bass Control Knob, sold separately.
Recommended Applications
Single High-Output Subwoofer
An excellent choice for powering a single high-performance 12" or 15" subwoofer capable of handling the amplifier's available RMS output.
Dual Subwoofer Systems
Ideal for customers building dual 10", 12", or 15" subwoofer systems. Choose compatible voice-coil configurations that produce a supported final impedance, with combined RMS power handling appropriate for the amplifier.
Custom High-Output Bass Systems
The CXA2000.1 provides the output needed for demanding custom subwoofer installations, including large ported enclosures and high-performance daily-driver systems.
Recommended Accessories
KICKER 53CXARC Remote Bass Control
Add convenient bass adjustment from the driver's seat with the optional KICKER 53CXARC remote bass knob.
The controller includes a 19.75-foot connection cable, making it easy to mount within reach of the driver while connecting to the amplifier's dedicated remote bass input.
Sold separately.
0-Gauge Amplifier Wiring Kit
A high-output amplifier requires properly sized power and ground wiring. The CXA2000.1 features 0-gauge inputs for high-current connections.
Choose a quality amplifier wiring kit with suitable fuse protection and follow KICKER's installation requirements.
Electrical System Upgrades
Depending on the vehicle and total system demand, additional electrical support may be necessary.
Consider upgraded battery and chassis grounds, appropriate charging-system capacity, and other electrical improvements when planning a high-output installation.
Frequently Asked Questions
How many watts does the KICKER 53CXA20001 produce?
The CXA2000.1 delivers 1000W RMS at 4 ohms, 1500W RMS at 2 ohms, and 2000W RMS at 1 ohm. It also has a listed dynamic power rating of 2200W at 1 ohm.
Is the KICKER CXA2000.1 stable at 1 ohm?
Yes. The amplifier is rated to operate with a final subwoofer impedance as low as 1 ohm.
Can the CXA2000.1 power two subwoofers?
Yes. The amplifier can power two compatible subwoofers when their combined wiring produces a supported final impedance and their combined RMS power handling is appropriate for the amplifier's output.
Are the two speaker terminal pairs separate channels?
No. The CXA2000.1 is a mono amplifier. Both positive and negative terminal pairs connect to the same amplifier channel and are provided for wiring convenience.
What size power wire does the KICKER CXA2000.1 use?
The amplifier features 0-gauge power and ground inputs. Use appropriately sized wiring, fuse protection, and grounding according to KICKER's installation instructions.
Will I need to upgrade my vehicle's electrical system?
That depends on the vehicle's charging capacity, existing electrical condition, and total audio-system demand. With an amplifier capable of delivering 2000W RMS, evaluating the electrical system before installation is strongly recommended.
Does the KICKER 53CXA20001 include a bass knob?
The KICKER 53CXARC remote bass controller is available separately.
Can I use the KICKER 53CXARC with this amplifier?
Yes. The CXA2000.1 supports the optional CXARC remote bass controller for convenient subwoofer-level adjustment from the driver's seat.
What does the Gain-Match LED do?
The Gain-Match LED provides a visual reference when setting amplifier gain to match the source unit's output signal. Proper gain adjustment helps reduce the risk of signal clipping and distortion.