Um, that is a very proud question! Some good brands are kicker, alpine, jl audio, rockford fosgate... But there are also not so big names that have very good products such as Orion or RE Audio... It really depends on what kind of sound you want too... Say if you just want some ridiculous bass, get 2 15s, or if you want some very clean bass get 2 10s. Or compromise with 2 12s. Since you r putting them in a car, I would def go with a sealed box. The sub you are looking at, I dont feel is worth the money. You can easily get a 12" Alpine Type R sub and an alpine 500 watt mono block amp for that price or less, and will sound much better. I would hit ebay, maybe do some research. You will want a mono block amp to power the subs and want to match the RMS wattage of the subs to the RMS wattage on the amp. There is so much info in the process, I would have to write a book...
