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Kicker 400W Mono Amplifier - Extreme Electronics

SKU: KX4001

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Kicker 400W Mono Amplifier (KX4001)

Kicker's KX400.1 mono subwoofer amplifier will power your bass with up to 400 watts RMS. This reliable and compact KX Series rocker remains cool even when pushed hard, thanks to its high-mass heatsink, high-tech internal components, and efficient Class-D amp technology.

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KX Mono Subwoofer Apms produce the most power from any single KICKER amplifier, 2,400 rated watts surging to raucous CompR or CompRT subwoofers. Without question, we know bass and bass power, And kicker actual power always exceeds rated power.

KX400.1 Specifications


RMS Power [Watts]
@ 14.4V, 4Ω mono, ≤ 1% THD+N : 200 x 1
@ 14.4V, 2Ω mono, ≤ 1% THD+N : 400 x 1
Length [in, cm]
8, 20.4
Height [in, cm]
2-1/8, 5.5
Width [in, cm]
8-5/16, 21
Frequency Response ± 1dB
Signal-to-Noise Ratio
>95dB, A-weighted, re: rated power


Input Sensitivity
Low Level: 125mV–5V
High Level: 250mV–10V
Electronic Crossover
Variable Lo-pass 40Hz–160Hz, 24dB/octave
Bass Boost
Parametric 20-80Hz; Variable Q: 1 to 5; Variable Boost, 0-18dB
Subsonic Filter
Variable 10–80Hz, 24dB/octave
Remote Bass
Yes [included]