Quote Originally Posted by 2000GTGP View Post
Wires: Make sure all wires are tightly secured to the correct spot. Also make sure you have the right gauge of wire.

High Pass/Low pass Filter: Adjust to correct frequency. This is based on preference of what kind of bass you want, deep or higher/tighter, just stay within the limits of the sub.
Forgot about wiring... CHECK IT THREE TIMES! It can and WILL **** you over.

The HP/LPF is a tricky topic. Most people find 80 Hz to be too high to prevent localization. But to most they don't mind it. If you're running anything smaller than 8" midbass or 6.5"s midwoofers with anything less than 6 mm of Xmax, do your speakers a favour and cross at 80-100. It may sound like you're in the middle of the band but its better than damaging your poor front setup.

Its not based on the type of bass you want, but rather how well you designed your system.