Description of XFL 1222:

The XFL series has set many world records at different competition arenas. The XFL's specially designed subwoofer executes power and sound that leaves the competition far behind. The XFL series has set many world records at different competition arena and reproduces the best possible sound quality. With its rock-solid structure and clean power output, our reliable XFL subwoofers will make your automobile come alive with power and sound.

Description of RXD-M3:

The RXD-M3 is a class D monoblock high power amplifier with 4,000 watts peak output, 2,000 watts RMS output and 1000 watts CEA-2006 rated power. It is CEA-2006 compliant which makes it easy to compare this amplifier to other CEA compliant amps on the market. The issue the car audio world is facing today is that there are so many different brands with different standards on how they rate their products.

Description of RWK41:

The Rockville RWK41 4 AWG (American Wire Gauge) amp kit has the following differences over other amp kits on the market at this price point. 1. Our RCA cables are 100 % copper. These are top of the line RCA cables 2. Better Resistance: The only thing that really matters with wires is the resistance rating. This is a measurement of conductivity and how much signal is loss per foot of wire.

Description of RBS12:

The RBS12 is a single vented speaker box is made in the USA with Grade "A" ¾" MDF wood. This enclosure is made with precision cutting machinery by industry experts that have been making these enclosures in the USA for over 20 years. All Rockville enclosures come with a customized enhanced glue that is unmatched by any other manufacturer. That means that the carpet will stay in place and not rip or tear.