Infinity K4
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 Item# 46123 / Condition:  Brand New

Infinity K4

100w x 4 Car audio amplifier with clari-fi, bluetooth streaming, party mode w/ outboard controller. Review this product

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Regular Price:$589.99
Savings Of:$150.00
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What's Included:

  • Remote plug (Euro or Phoenix connector)
  • 4 Bare wire-to-RCA adapters
  • 4-Channel amplifier
  • 2 M4 x 10mm bracket screws
  • 4 Mounting screws (M4 x 52mm)
  • 4 spare fuses
  • Cabin-mounted control panel
  • Quick Start Guide

Product Highlights:

  • Upgradable firmware
  • Brushed steel industrial design
  • Bluetooth Streaming
  • Speaker-level (high-level) inputs
  • Control Panel
  • Preamp inputs and outputs
  • Party Mode wireless pairing
  • Clari-fi Technology
  • Wired control panel
  • ADAS Input
  • Full range line outputs to daisy chain multiple amps
  • Independent variable high- and low-pass filters

Infinity Kappa Series K4 is a Class-D Full Range 4-Ohm Stable 4-Channel Amplifier. The brush steel industrial design showcases the amplifier in a magnificent way. With patented Clari-Fi Technology, audio has never been better. Clari-Fi Technology intelligently improves highly compressed digital music by rapidly analyzing each file and delivering a better sound. Clari-Fi Technology evaluates audio in real time and reconstructs the file to deliver smooth crisp sound. Phone calls are safely and conveniently answered by the press of a button. Anyone can control the music with Party Mode regardless of how many people are in the vehicle. Party Mode, once activated, can allow anyone access to full musical control, now anyone can have a say in what is played. Bluetooth audio streaming is one of many unique features of this 4-Channel Amplifier. Audio streaming from electronic devices are easy with bluetooth capabilities,. The omni-directional microphone allows full wireless control of your phone. The Wired Control Panel allows quick access to patented Clari-Fi Technology, Bluetooth pairing, Party Mode and several other features. For safety purposes, ADAS Input will take control of the audio when applicable devices are detected. Firmware is effortlessly upgradeable by microUSB port. Major/minor adjustments are easily achieved with the controls located on the side of the K4. Crossover, Input Level and Gain can all be adjusted. Class D amplification features high-efficiency, low-heat amps. The Full-range line outputs allows the amplifier to pass the audio signal to additional subwoofers and amps offering even more customization of your system. This class D amplifier has a Low-Pass Frequency of 32-320 Hz with a Low-Pass Slope of 12 dB/Octave. In addition, it also has a High-Pass Crossover Frequency of 32-320 Hz with a High-Pass Slope of 12 dB/Octave. The amplifier also features Independent variable high- and low-pass filters for more variation.


Width (inches) 10-1/4
Low-Pass Crossover Frequency 32-320 Hz
Bass Boost No
Fuse Rating 60
Signal to Noise Ratio 75 dB
Fan Cooled No
Depth (inches) 6-15/16
Minimum Impedance Unbridged 2
Best Frequency Response 20-20k Hz
Height (inches) 1-3/4
Bass Boost Frequency N/A
Peak Power Output N/A
Power at 2 Ohms 120 x 4 (Watts x Channels)
Bridged Power 240 x 2 (Watts x Channels)
Input Voltage 14.4v
RMS Power Output 100 x 4 (Watts x Channels)
Minimum Impedance Bridged 4
THD at Rated RMS Power 0.1%
Amplifier Class D
Low-Pass Slope (dB/octave) 12 dB/octave
High-Pass Crossover Frequency 32-320 Hz
High-Pass Slope (dB/octave) 12 dB/octave
Speaker Level Inputs RCA
Preamp Outputs 1 pair
  • UPC: 050667370565
  • Weight: 7.94
*Warranty: 1 Year warranty.
1 Year warranty from implies that repairs must be returned to, not the manufacturer. More information can be found in our help section under returns & warranties.
What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warranted against being blown, burned or abused.