CT-400.1D // 400 Watts RMS Monoblock Car Audio Amplifier

$109.99 Regular price $199.99 Sale price

You Save 45% ($90.00)


CT Sounds engineered the CT-400.1D Compact Class D Monoblock Car Amplifier for anyone in need of a powerhouse amplifier that fits just about anywhere in your vehicle and won’t destroy your wallet. If you want a 400-watt amplifier that absolutely pounds and delivers clean power to your subwoofers then look no further. 

This 1-ohm stable monoblock amplifier features a Low Pass Filter (LPF), Subsonic Filter, and Bass Boost so you can get the exact sound you are looking for out of your amplifier. The MOSFET power supply and proprietary heat dissipation design will ensure that the amplifier runs cool for even the most demanding playlists. Furthermore, the compact chassis and small footprint makes it easy to install in any car audio application. 

You can sleep easy at night knowing your subwoofer amplifier is protected from damage due to the amplifier's uniquely engineered protection circuitry featuring high voltage, low voltage, over current, and high-temperature protection.

Quick Facts:
RMS Power: 1Ω @ 14.4v 400 Watts x 1-Channel
RMS Power: 2Ω @ 14.4v 300 Watts x 1-Channel
RMS Power: 4Ω @ 14.4v 150 Watts x 1-Channel
Power & Ground Input Size: 4 Gauge
Speaker Input Size: 12 Gauge
Remote Bass Knob: ✔️
Continuously-Variable Input Gain Control ✔️
Remote Turn-On / Turn-Off Circuit ✔️
MOSFET Pulse Width Modulated Power Supply ✔️
Soft Turn-On Circuit ✔️
High Voltage / Low Voltage Protection Circuit ✔️
Thermal and Speaker Short Protection Circuit ✔️
LED Power and Protection Indicators ✔️
Technical Specifications:
Amplifier Type: Monoblock Amplifier
Amplifier Circuitry: Class D
Strappable? Yes; Signal Output is Master
RMS Power @ 1 Ohm: 400 Watts x 1-Channel (14.4v)
RMS Power @ 2 Ohm: 300 Watts x 1-Channel (14.4v)
RMS Power @ 4 Ohm: 150 Watts x 1-Channel (14.4v)
Recommended Fuse: 50A
Power & Ground Input Size: 4 Gauge
Speaker Input Size: 8 Gauge
Gain Adjustment: 0.15v - 10v
Low Pass Filter (LPF): 40 Hz - 180 Hz
Subsonic Filter: 0 Hz - 50 Hz
Bass Boost: 0 dB - 12 dB
Bass Boost Frequency: 30 Hz - 80 Hz
Frequency Response: 20 Hz - 320 kHz
Signal-To-Noise Ratio (S/N): 93 dB
Damping Factor: 170
Input Impedance: 22 Kohms
Input Sensitivity: 150 mV
Operating Voltage: 8.8v - 15.4v
Minimum Impedance: 1 ohm
Length: 8.38"
Width: 5.63"
Height: 2.19"

Customer Reviews

Based on 7 reviews
Jerry lane

I’m just a grandpa that likes to jam. The CT 400 fits the bill.I don’t need a lot of power. If I can catch a 4 channel on sale I’m probably get it

Clint Faist
Great little amp!

Just installed this one on a JBL Club 10" in an explorer and she is way stronger than the ratings. Great build quality and sounds awesome as well. The small footprint makes it very versitle as well. Great job CT Sounds.

Derrick Moore
Great amp

Love the amp it’s great

Cornelio Ceja

CT-400.1D // 400 Watts RMS Monoblock Car Audio Amplifier

Walter Paz
Well Built

Well Built. Small and very responsive to a pair of TROPO-8" subwoofers. I have in very low settings with limited gain as they are not my primary subwoofers. to date, the amp has been holding up very well.