Amplifiers
Amplifiers provide the necessary power, measured in watts to drive the speakers. High Power amplifiers require a low gauge cable to provide adequate current to the amplifier. The amplifier is a very important component of a loud speaker system. Make sure that the total power handling capacity of the speakers connected to the amplifier or head unit is greater than or equal to the power of the amplifier or head unit. Amplifiers commonly come in two,four or six channels. Subwoofer amplifiers these days are generally Mono Amplifiers. However it is common that multiple channels be used for the exclusive use in allowing for more than one channel to be used (one channel)
Capacitors
Capacitors are used to store extra energy for the amplifier to draw on demand. Capacitors are useful because they can reduce the voltage loss (small margin) on the other electrical components in the car. These large capacitors may not cure headlight and/or interior light dimming as this is a sign of too little amperage from the alternator. A capacitor is only good so far as the audio system isn't trying to pull too much from the electrical system. A capacitor doesn't provide more power, it's designed to 'stiffen' the voltage to the amp, nothing else. If the current isn't there, a cap won't help. The alternator must have at least 20% more amperage power than the entire vehicle and sound system combined for a capacitor to be of benefit which is ironically the same requirements for an amp to be efficient. A rule of thumb is that 0.5 farad of capacitance is needed for every 500 watts of power in your audio system. A capacitor does not affect sound in any way. It is strictly for power conditioning.
Power
There are two very different expressions of power; the first is known as PMPO (peak music power output) or "commercial watts." This is a misleading measurement and is often used to make audio components sound better than they actually are. PMPO is the peak amount of power that can be derived from an amplifier given perfect conditions and can only be sustained over a very short time (a few milliseconds). PMPO is also used to measure speaker output. Once again this is merely the peak amount of power that can be run through a speaker without blowing it. Should this amount of power be applied for more than a few milliseconds the speaker will blow. The next measurement for power is RMS (Root mean square) and is the maximum continuous power that can be derived from an amplifier or run through a speaker. This is a true measurement of what you can expect from any specific component of an audio system.
Since there are many ways for a company to measure the power output of their product, CEA(The organisation Consumer Electronics Association) created the CEA-2006 standard. The standard provides a guideline for car audio manufacturers to follow. Although this is a voluntary standard, all major manufacturers have agreed to use it to measure their head unit and amplifier power output. The rating is also clearly stated on the product with the CEA2006 logo on the packaging box, which makes comparing two competing products easier.
Amplifiers provide the necessary power, measured in watts to drive the speakers. High Power amplifiers require a low gauge cable to provide adequate current to the amplifier. The amplifier is a very important component of a loud speaker system. Make sure that the total power handling capacity of the speakers connected to the amplifier or head unit is greater than or equal to the power of the amplifier or head unit. Amplifiers commonly come in two,four or six channels. Subwoofer amplifiers these days are generally Mono Amplifiers. However it is common that multiple channels be used for the exclusive use in allowing for more than one channel to be used (one channel)
Capacitors
Capacitors are used to store extra energy for the amplifier to draw on demand. Capacitors are useful because they can reduce the voltage loss (small margin) on the other electrical components in the car. These large capacitors may not cure headlight and/or interior light dimming as this is a sign of too little amperage from the alternator. A capacitor is only good so far as the audio system isn't trying to pull too much from the electrical system. A capacitor doesn't provide more power, it's designed to 'stiffen' the voltage to the amp, nothing else. If the current isn't there, a cap won't help. The alternator must have at least 20% more amperage power than the entire vehicle and sound system combined for a capacitor to be of benefit which is ironically the same requirements for an amp to be efficient. A rule of thumb is that 0.5 farad of capacitance is needed for every 500 watts of power in your audio system. A capacitor does not affect sound in any way. It is strictly for power conditioning.
Power
There are two very different expressions of power; the first is known as PMPO (peak music power output) or "commercial watts." This is a misleading measurement and is often used to make audio components sound better than they actually are. PMPO is the peak amount of power that can be derived from an amplifier given perfect conditions and can only be sustained over a very short time (a few milliseconds). PMPO is also used to measure speaker output. Once again this is merely the peak amount of power that can be run through a speaker without blowing it. Should this amount of power be applied for more than a few milliseconds the speaker will blow. The next measurement for power is RMS (Root mean square) and is the maximum continuous power that can be derived from an amplifier or run through a speaker. This is a true measurement of what you can expect from any specific component of an audio system.
Since there are many ways for a company to measure the power output of their product, CEA(The organisation Consumer Electronics Association) created the CEA-2006 standard. The standard provides a guideline for car audio manufacturers to follow. Although this is a voluntary standard, all major manufacturers have agreed to use it to measure their head unit and amplifier power output. The rating is also clearly stated on the product with the CEA2006 logo on the packaging box, which makes comparing two competing products easier.
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