Description
Rich and Immersive High-Resolution Audio
High-Resolution Audio is high-quality sound that exceeds CD standard. High-resolution audio captures and beautifully expresses all the details of your favorite music. Through ultra-high and low frequencies, immerse yourself in a rich and high-quality sonic experience.


Output Coil with Magnetic Shield
Prevents magnetic flux from radiating from the subwoofer’s coil, resulting in reduced noise and enhanced sound quality.
High Quality Capacitors
PMLCAP’s (Polymer Multi-Layer Capacitors) are utilized in the LC filter circuits to decrease distortion, ensuring clear detail for a truer to life sound.


Gauge-style terminals lock wire
into position with set screw for secure installation.
One-side Connection
All terminals and connections are on one side for easier installation and a cleaner look.

①Fuse (30A x3)
②Battery terminal (POWER IN BATT.)
③Power control terminal
④Ground terminal (GND)
⑤Speaker output terminals (A.ch/B.ch)
⑥Speaker output terminals (Sub)
⑦Speaker level input terminal
⑧Remote terminal for Sub ch
⑨Line in terminal (A.ch/B.ch/Sub)

⑩Input sensitivity control(A.ch/B.ch/Sub)
⑪Input selector switch
⑫Bass Boost Level control (Sub)
⑬LPF frequency control (SUB)
⑭Filter switch (A.ch/B.ch)
⑮HPF frequency control (A.ch/B.ch)
Speaker Level Input Harness
Speaker Level Input Harness is included to connect to speaker wires from factory installed receivers.

Optional Wired Level Control Ready
KCA-RC01A Optional wired remote level control allows you to easily adjust the subwoofer volume.

General Features
| Amplifier Tech-Spec | X8001-5 | X5001-1 | X3001-4 |
|---|---|---|---|
| Maximum Output Power | 1600W | 1000W | 600W |
| RMS Power at 4ohms | 50W x 4ch +300W | 300W | 50W x 4ch |
| RMS Power at 2ohms | 75W x 4ch +500W | 500W | 75W x 4ch |
| Bridged at 4ohms | 150W x 2ch +300W | – | 150W x 2ch |
| Frequency Response | 20Hz – 50kHz | 20Hz – (Upper Frequency is depends on Low Pass Filter) | 20Hz – 50kHz |
| High Pass Filter | 50Hz – 200Hz, -12dB/oct. | – | 50Hz – 200Hz, -12dB/oct. |
| Low Pass Filter | 50Hz – 200Hz, -24dB/oct. | 50Hz – 200Hz, -24dB/oct. | 50Hz – 200Hz, -12dB/oct. |
| Infrasonic Filter | – | Yes | – |
| Speaker Level Input | Yes | Yes | Yes |
| Signal Sensing Turn-on | Yes | Yes | Yes |
| Signal to Noise Ratio | 90dB | 100dB | 90dB |
| Dimensions (W x D x H)mm | 248 x 169 x 53 | 213 x 149 x 53 | 213 x 149 x 53 |
| Weight | 2.1kg | 1.5kg | 1.4kg |









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