the Infinity Kappa 124.7w (http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=18535) subwoofer ? im lookin into a new system because i currently am gettin a new car that i want to have a seperate sound system for 94 mercedes and for those of u who might remember me i posted about a sound system for a 92 mercury sable thanks for the help

Infinity is an average brand and I have not personally heard the 124.7

well im not to audio savy the help would be apreciated id just like a decent sounding system for the car i specified

The sub only plays 10-15% of the frequency spectrum. If you want a good sounding system you should concentrate on the mid/tweets.