KS-AX4302

RCA pre-outs enable you to easily expand your sound system. You can significantly improve your in-car sound quality by connecting extra amplifiers (and upgrading your speakers) to your headunit.
 
RCA pre-outs enable you to easily expand your sound system. You can significantly improve your in-car sound quality by connecting  extra amplifiers (and upgrading your speakers) to your headunit.  Also called an infrasonic filter, a subsonic filter cuts off extremely low bass (below the range of human hearing) that many speakers cannot effectively reproduce, thereby making the amp's power supply and output  devices, and the speaker, more efficient.

Amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 1% is inaudible.
 
The range of sounds, from bass to treble, a stereo component can reproduce. It's measured in Hertz (Hz), and a wider range is better — the bass will be lower and the treble will be higher. Humans can perceive sounds from 20 to 20,000 Hz. The lowest note on a bass guitar is about 41 Hz. Most male vocalists have a range between 100 and 500 Hz. Cymbals hit at about 15,000 Hz. 
 
Metal Oxide Semiconductor Field Effect Transistors have a higher switching speed than bipolar transistors and generate very little heat. MOSFETs offer fast response and high efficiency.
 
The amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds. When choosing an amplifier, the RMS rating is the power rating you should pay most attention to.
 
The amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds. When choosing an amplifier, the RMS rating is the power rating you should pay most attention to. 

• 2-channel amplifier, bridgeable into 1-channel to run a subwoofer
• 400 Watts Max. Music Power
• 100 Watts RMS x 2CH @ 4Ω, 200W RMS x 1CH at 4Ω Bridged
• 2 or 1-Channel Operation
• Class AB Circuitry
• Pulse Width Modulated Power Supply
• MOSFET Output Stage
• Frequency Response 5 - 50kHz (0, -3dB)
• THD: less than 0.04% at 1kHz
• S/N: more than 80dBA at 2Vrms
• LPF (50-400Hz, -12dB/oct)
• HPF (50-400Hz, 12dB/oct)
• Subsonic Filter (20Hz)
• Variable RCA Input Level Control (0.3 - 6V)
• Variable Speaker Input Control (1.2V - 12V)
• Variable Bass Boost Control (45Hz/0-12dB)
• Gold Plated RCA Jacks
• Angle Mount Gold-Plated Block Terminals
• Anti-Pop Circuitry
• Two-Way Installation
• 2Ω (stereo)/4Ω Capability
• Blue Illumination