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Just when you think you have seen it all. You haven't. Today's sub makers are building some of the most off the chain subs I have ever seen. Subs are getting bigger and bigger ever year. First of the big sub craze was the Vega Stroker, an awesome piece of work. As if big wasn't big enough Kicker introduces a square big sub. Now you have JL Audio introducing the new W7. This thing is huge. But what does it take to power these beasts. Were can you get enough raw power to make a sub this size rattle your cage. Amplifiers are often classed. There broken into these classes for a reason. The class of an amp determines what range of frequencies the amp is most efficient in reproducing. This allows you to get the right amp to do the right job. In the past few years' amp makers have been pushing Class D amps. It seems at first only a few were making them but now if a manufacture wants to stay in the game they are going to produce a Class D amp that can push there monster subs. It doesn't do any good to build a 1000w RMS sub if your amps are only good for 500w peak at ½ ohm load. It just will not get the job done and now you are going to have a blown 500.00 sub sitting real pretty on the floor of you house being used as a coffee table. All an amps job is to do is convert D/C power to A/C power. All speakers use this A/C power to make sound. Now we get tricky. This A/C signal leaves the amp in the form of a wave, if it was to be seen. The wave determines what you and I hear. A Class D amp simply put plays a very broken or rough wave. It's wave is not smooth and flowing like that of a Class A amp. Class D's are designed to take as much raw power and still make it musical as possible. Class D's will only play low frequencies because of how unclean there output signal is. This is why you can't use a Class D for your favorite set of separates. Class D amps are a great thing for today's power hungry subs, and they are extremely efficient also. They make use of every ounce of power they get an they enjoy doing it. Most cars today just do not have a charging system strong enough to handle the bigger ½ ohm stable amps that are on the market. This is were Class D steps up and takes control. Class D's are able to run cooler and more efficient because there not reproducing frequencies that you don't need to begin with. Most Class D amps are also smaller in size, which is always great to a mini trucker that can't find room for himself let alone a big amp taking up a lot of room.
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If you're in the market to drive a big sub but really don't want to kill your charging system and your wallet try checking out a Class D amp. These little guys pack a big punch. Until next time! If it's to loud your to old. Ben HusserSSM: LaynbdyEmail: Laynbdy247@aol.com
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