With thousands of subwoofers on the market, only a few names truly rise to the top in competition subwoofers. JL Audio's W7, MTX's Jackhammer, Kicker's Solo-Baric, and the RE Audio's XXX18 are frequent participants in this field. While the Jackhammer is a true competition sub, its nearly 400 pounds of mass precludes it from almost any daily driver. The W7 is a phenomenal speaker, it lacks the SPL many are looking for these days. At 100 pounds the XXX18 is no lightweight, but does fill the niche between true SPL competition subs and the sound quality oriented smaller counter parts.

Mean-Machine 2 & 4-channel amplifiers are designed to be the basic building blocks for any car audio sound system. When the time comes for stepping up the car audio system's power, simply convert the initial 2 or 4-channel amp to a more powerful 1 or 2-channel amp by using the “bridging” speaker wire connections. Next, buy a second matching Autotek amp, configured the same way, to complete the upgrade. Span all your car audio upgrade dilemmas by using Autotek's bridgeable amplifier designs to your advantage.

These are great speakers. If you have replaced all your OE speakers, and are still not happy with the sound, these may be for you. The first thing I noticed was that a large hole in the range of my speakers was filled in with these tweeters. Inexpensive 3 way speakers simply can't do the job of component speakers.

These speakers project a lot more bass, but shine the most in the mid range. The mid range is very crisp and well defined. The high range is very exceptional also, but can not be fully appreciated due to the location of the speakers. Even at high volume with the bass cranked up there is no sign of flutter from these speakers.

These speakers perform well at all frequencies. While it was not their intended purpose, they do add a great deal of bass to the sound system. While in other aspects the crossover is a burden, when it comes to performance it does its job very well, as the speakers sound very natural.