1. Make sure the automobile has an electrical system that will support the audio systems current draw.
2. Upgrading your alternator for multiple amplifiers is recommended.
3. Use at least one high quality battery per 1000D or per two 600D's.
4. For runs of 20ft or less use at least one 4 awg power wire and one 4 awg ground wire per 1000D, 8 awg for the 600D. If you are using one wire
with a distribution block for multiple amps, make sure to use a larger gauge wire for the main feed.
Be sure to test battery voltage at the amplifier terminals while the system is playing at high volume. Make sure this reading stays as close to 14.4
volts as possible, if this measurement is below 11volts see above tips or call Crossfire Technical Support (562) 906-0800.
REMEMBER !!!
IMPORTANT!!
The majority of failures we see with our Class D amplifiers are due to people using them in cars without the proper electrical considerations.
There is a common misconception about Class D amplifiers that contributes to this problem. Many people believe that, for example, since a
1000D is class D and it is very efficient that it doesn't pull high amounts of current. This is only partly true. A 1000D is capable of drawing 120
amps of current at max draw. Now, only drawing 120 amps of current to make over 1000 watts is very efficient, some class A/B amplifiers need
over 200 amps to make the same power. A normal stock automobile sees it differently, 120 amperes is a very high amount of current and very
taxing on its electrical system.
We at Crossfire strongly suggest using one dedicated, high quality, battery per 1000D amplifier or per two 600D amplifiers. We also recommend
upgrading the vehicles alternator whenever possible.
It is very important to keep your battery voltage above 11 volts and as close to 14.4 volts as possible. Not only do you get more power at 14.4
volts but you are risking serious damage to your amplifier below 11 volts. Ohms law states that current equals power (watts) divided by voltage.
This means that current and voltage are inversely proportional, in other words as your battery voltage falls your amplifier has to draw more
current to make the same amount of power. At a certain point the amp draws so much current that it damages components in its input section.
This is very common in all Class D amplifiers. The solution is to keep your battery voltage between 12 volts and 14.4 volts. If you follow the tips
below you will get the best and most reliable performance from our Class D amplifiers.
To Previous Page
Loading...