The MTX Jackhammer is one of the largest (if not THE largest) subwoofer loudspeakers ever manufactured. It is often used in automotive applications, where it needs its own dedicated alternator, battery, and capacitor bank. It is very large and weighs several hundred pounds. It is in fact so large that it will not easily fit in a normal car. It is best suited for minivans, SUVs, Hummers, and the like. Speakers this large are often considered overkill for car audio.
My friend just got an MTX Jackhammer for his riced minivan.
A single-projectile round designed to be fired from a shotgun. The term is often misused to refer to an ordinary bullet. Slugs are often much larger than conventional bullets. While ordinary bullets larger than .50 caliber are illegal or heavily restricted in many jurisdictions, slugs this large are not because they are classified as shotgun shells. Slugs also have the advantage that one can carry a single gun and use it as both a shotgun and a rifle.