46CXA8001T KICKER CXA Series 800W Mono Class D Subwoofer Amplifier 1-Ohm
KICKER CXA800.1 800W 1-Ohm Mono Class D Subwoofer Amplifier | CX Series
Serious Subwoofer Power in a Compact Package
Give your subwoofer the clean, controlled power it needs with the KICKER CXA800.1 CX-Series Mono Class-D Subwoofer Amplifier.
Designed specifically for bass applications, the CXA800.1 delivers up to 800 watts RMS x 1 at 1 ohm, while producing 600 watts RMS at 2 ohms and 300 watts RMS at 4 ohms.
That makes the CXA800.1 an excellent choice for customers stepping up to a higher-output subwoofer system while still wanting a compact amplifier that's easy to integrate into today's factory and aftermarket audio systems.
KICKER's FIT+™ Fail-safe Integration Technology-PLUS allows the CXA800.1 to accept both low-level RCA and high-level speaker signals, including speaker-level signals up to 40 volts.
Add the variable low-pass crossover, 25Hz subsonic filter, KickEQ™ bass boost, RCA pass-through outputs, and optional remote bass control, and you have a highly capable mono amplifier designed to deliver serious bass without taking up excessive installation space.
Why You'll Love It
✔ 800W RMS x 1 @ 1 Ohm
✔ 600W RMS x 1 @ 2 Ohms
✔ 300W RMS x 1 @ 4 Ohms
✔ Efficient Class-D Design
✔ 1-Ohm Stable
✔ FIT+™ Factory-Radio Integration
✔ Accepts Up to 40V Speaker-Level Input
✔ Variable 50–200Hz Low-Pass Crossover
✔ 25Hz 24dB/Octave Subsonic Filter
✔ KickEQ™ 0–6dB Bass Boost @ 40Hz
✔ RCA Pass-Through Outputs
✔ CXARC Remote Bass Control Compatible
✔ Compact Installation Footprint
✔ Vertical Mounting Hardware Included
✔ Three-Second Turn-On/Off Delay
✔ Two-Year KICKER Warranty When Purchased from an Authorized Dealer
Built to Deliver More Bass
The CXA800.1 is a dedicated mono subwoofer amplifier, engineered to concentrate its output on the low-frequency portion of your audio system.
Instead of using amplifier channels for full-range speakers, the CXA800.1 is designed to provide substantial power to your subwoofer.
It's an excellent fit for:
- Single high-power subwoofer systems
- Dual-voice-coil subwoofers
- Loaded subwoofer enclosures
- Truck audio systems
- SUV audio systems
- Daily-driver bass upgrades
- Factory-radio subwoofer upgrades
- Aftermarket head-unit systems
- High-output street systems
800 Watts RMS at 1 Ohm
The CXA800.1 provides different power levels depending on the final speaker impedance.
4 Ohms
300W RMS x 1
2 Ohms
600W RMS x 1
1 Ohm
800W RMS x 1
All three ratings are important when matching this amplifier to a subwoofer.
The amplifier's maximum rated output is 800 watts RMS at 1 ohm, not 800 watts at every impedance.
1-Ohm Stable
The CXA800.1 is 1-ohm stable, giving you additional flexibility when selecting and wiring your subwoofer.
This is especially useful with dual-voice-coil subwoofers, where different wiring configurations can produce different final impedances.
A properly configured 1-ohm system allows the CXA800.1 to deliver its full 800W RMS x 1 capability.
Always determine the final wired impedance before connecting the subwoofer to the amplifier.
Match the Amplifier to Your Subwoofer
The most important number when choosing a subwoofer for the CXA800.1 is its RMS power rating and final impedance.
For example:
1-Ohm Final Load: Up to 800W RMS available
2-Ohm Final Load: Up to 600W RMS available
4-Ohm Final Load: Up to 300W RMS available
This makes the CXA800.1 particularly versatile for customers who may change subwoofers or build their system around a specific voice-coil configuration.
Efficient Class-D Power
The CXA800.1 uses an efficient Class-D power plant.
This allows KICKER to deliver substantial subwoofer power from a relatively compact amplifier chassis.
That compact design is particularly useful for modern vehicles where available amplifier mounting space can be limited.

Up to 40V Speaker-Level Input
Modern factory audio systems can produce much higher speaker-level signal voltages than traditional aftermarket radios.
The CXA800.1 is designed to accept up to 40 volts of high-level input signal.
That gives installers considerably more flexibility when integrating the amplifier with factory audio systems.
Variable Low-Pass Crossover
The CXA800.1 includes a variable low-pass crossover adjustable from:
50Hz–200Hz
with a 12dB/octave slope.
This allows the amplifier to concentrate its output on the bass frequencies while preventing excessive overlap with the vehicle's full-range speakers.
For most systems, the low-pass setting will typically be adjusted somewhere in the upper-bass region and then fine-tuned by ear.
Built-In 25Hz Subsonic Filter
The CXA800.1 includes a 25Hz subsonic filter with a 24dB/octave slope.
A subsonic filter reduces extremely low-frequency content that may not contribute useful audible output but can cause excessive subwoofer excursion.
This is especially important in certain ported enclosure applications.
KickEQ™ Bass Boost
The CXA800.1 includes KickEQ™ variable bass boost, providing:
0–6dB of boost at 40Hz
This gives installers the ability to add additional emphasis around the 40Hz region when appropriate for the subwoofer and enclosure.
We recommend using bass boost conservatively. Proper subwoofer selection, enclosure design, crossover settings, and amplifier gain are more important to overall system performance.
Compact Installation Footprint
Despite its 800-watt capability, the CXA800.1 maintains a compact chassis.
Dimensions: 8-1/8" L × 6-3/4" W × 2-3/8" H
That makes it a practical choice for:
- Pickup trucks
- Under-seat installations
- SUV cargo areas
- Trunks
- Side-panel installations
- Custom amplifier racks
- Compact subwoofer systems
KICKER also includes hardware for vertical mounting, giving installers another mounting option when space is limited.
RCA Pass-Through Outputs
The CXA800.1 includes full-range RCA pass-through outputs.
This allows the signal to continue to another compatible amplifier without requiring a separate signal-distribution device in many system configurations.
For example, the CXA800.1 can power the subwoofer while passing signal to a full-range amplifier powering the vehicle's door speakers.
Optional Remote Bass Control
The CXA800.1 is compatible with KICKER's CXARC Remote Bass Controller, which is sold separately.
The optional remote allows the driver to make convenient bass-level adjustments from the front of the vehicle.
This can be particularly useful when switching between music with dramatically different bass content.

Built for Daily-Driver Bass
The CXA800.1 is a great fit for customers who want a noticeable subwoofer upgrade without building an enormous competition-style electrical and amplifier system.
Its combination of:
- 800W RMS maximum output
- 1-ohm stability
- Factory-radio integration
- Compact dimensions
- Built-in crossover controls
- Class-D efficiency
makes it an excellent choice for a wide range of street systems.
Key Features
- KICKER CX-Series
- CXA800.1
- Part Number: 46CXA8001
- Mono Subwoofer Amplifier
- Class-D Power Plant
- 1-Ohm Stable
- 800W RMS x 1 @ 1 Ohm
- 600W RMS x 1 @ 2 Ohms
- 300W RMS x 1 @ 4 Ohms
- FIT+™ Factory-Radio Integration
- Up to 40V High-Level Input
- 125mV–5V Low-Level Input
- Variable 50–200Hz Low-Pass Crossover
- 12dB/Octave Low-Pass Slope
- 25Hz Subsonic Filter
- 24dB/Octave Subsonic Slope
- KickEQ™ 0–6dB Bass Boost @ 40Hz
- Full-Range RCA Pass-Through
- CXARC Remote Bass Compatible
- Three-Second Turn-On/Off Delay
- Compact Chassis
- Vertical Mounting Hardware Included
Specifications
| MODEL |
| CXA800.1 |
| Power (watts/ch) 4 Ohm |
| 300x1 |
| Power (watts/ch) 2 Ohm |
| 600x1 |
| Power (watts/ch) 1 Ohm |
| 800x1 |
| CXRC Remote Bass Capable (sold sep.) |
| yes |
| Dimensions (in, cm): (all models 2-3/8, 5.9H x 6-3/4, 17W x ...L) |
| 8-1/8, 20.6 |
| Frequency Response (Hz): |
| 25-200, +0/-1dB |
| Input Sensitivity: |
| 125mV–5V (Low Level) 1V–40V (High Level) |
| Signal-to-Noise Ratio: |
| >95dB, a-weighted, re: rated power |
| Active Crossover: |
| Variable Lo-pass 50Hz–200Hz, 12dB/octave |
| Subsonic Filter: |
| 25Hz @24dB/octave |
| KickEQ™ Boost |
| Variable 0-6dB @40Hz |

