KX Amplifiers set the curve for smaller chassis footprints, with the largest model measuring at only 15-1/2 inches long. KICKER amps feature an optimized circuit layout for the most efficient use of components, the smallest footprint and clearest sound quality. Their cosmetic style is sharp as well, with magnetic panels covering control settings and glass fiber-composite end panels for a clean, stealth look that’s even UV-protected.
KX monoblock amps use a Class-D, boost-converter power supply for the highest sound quality and efficiency. Boost-converter technology allows KX.1 amps to achieve a typical efficiency near 80 percent, significantly beyond standard amp power supplies. That, along with the adaptability to use fewer internal parts, allows for a smaller bass-amp size, the coolest operation, optimum reliability and overall excellent performance. Full-range models utilize Class D-IC power, which provides superior efficiency, exceptional sonic performance and the compact size.
The highest-grade components and surface-mount technology under the high-mass heat sink allow our amps to perform at a level others fail to reach. Double-sided fiberglass circuit boards, Litz-wound transformers that minimize power loss and maximize transfer, TO218 output devices for high-current switching, buffered RCA outputs on bass amps, angled custom-tooled power connectors – the details make our amplifiers the most reliable, high-performing audio equipment in the industry.
A remote level control, available with all KX.1 amps and the KX.5 model, provides bass volume from the dash. Users can take advantage of built-in crossovers and adjustable KickEQ™ processing for dialing in perfect sound, and a variable high-pass filter (subsonic on KX.1 amps and KX.5 sub section) provides subwoofer protection from potentially damaging lowest frequencies. A three-second turn-on delay eliminates additional interference, red over/under voltage LEDs, and auto-reset protection are some of the other conveniences utilized by dependable KICKER amps.
KX Amplifier Features
Workhorse power and performance from proven technologies
Signature compact footprint for space-challenged installs
High-efficiency Class-D design in multi-channel and stereo amps
Class-D models with boost converter in mono amps provide 80-percent efficiency
Works best with KICKER CompR and CompRT Subwoofers, and RS and KS Speakers
All feature FIT™ (Fail-Safe Integration Technology) to accept output from virtually any source
FIT’s lab-grade, balanced differential inputs offer best possible noise rejection
Double-sided fiberglass circuit board
Built-in crossovers and adjustable KickEQ™ for dialing it in
DC offset or 12v remote auto turn-on modes
Angled custom-tooled power connectors
Looks great with magnetic panels covering controls and glass-fiber composite end panels
KX-Series Full-Range Class-D Multi-Channel Amp Model (at 14.4V) KX400.4
Full-Range Channels Continuous RMS Power [watts/channel] @ 14.4V, 2-Ohm stereo 100x4
Full-Range Channels Continuous RMS Power [watts/channel] @ 14.4V, 4-Ohm bridged mono 200x2
Dimensions: 2-1/8 H x 8-5/16 W x 11-3/16L) in.
Frequency Response (Hz): 10-20k (KX.5 sub ch. 10-160), +0/-1dB
Input Sensitivity: high level 250mV-10V, low level 125mV-5V
Signal-to-Noise Ratio: >95dB, a-weighted, re: rated power
Active Crossover: (amp1) 24dB/octave, variable 10-500Hz, selectable high pass, low pass or all pass, w/10x switch; (amp2) 24dB/octave, variable high pass 10-500Hz, variable low pass 40-500Hz, selectable high pass, low pass, all pass or band pass, w/10x switch for lo pass; (KX.5 sub channel) 24dB/octave, variable 40-160Hz, low pass only
Subsonic Filter: 24dB/octave, high-pass variable 10-80Hz
KickEQ™ Boost: variable to +18dB, centered @ 40Hz