Car Audio Basics – Amps and Boxes

How do I match a sub to the amp I have?

You need a few pieces of information to correctly match a sub to a amp. First thing you need is to know the ohm load of the woofer so you can correctly match them. The reason they need to match is because the resistance is crucial to making sure you do not blow the amp or woofer. Second thing you need to know is the RMS wattage power the amp puts out at each ohm load.
When the OHM load and RMS wattage required are equal to the amp then you have found a good match.

What kind of sub box do I want?

There are many kinds of sub boxes that you can choose from. Choosing a sub box comes down to 4 key factors.

-Woofer size
-Type of music you listen to
-Space available in the vehicle
-Amount of bass enhancement you desire

Genres such as country or rock sound better in a sealed box. Genres such as pop and rap sound better in a ported box. If you desire more bass then a ported box offers a difference of 3dbs in sound.

Contributed by Shane, WeeBee Audio/Video Mobile Electronics Expert