that amp that you bought is for Subwoofers, Nothing else.Originally Posted by bingen
Reason why you need a 4 Channel amp, your running 4 speakers each pair having different ratings, therefor you want one channel per speaker.
Per the Boss vs stock. Most aftermarket Hu's (~90%) won't put out the same power as the stock one due to the aftermarkets built in amp vs the stock. The reason why most people go for the aftermarket HU's is for the features IE ipod. The majority of big builds have a HU that has 3 Rca outputs (Front, Back, Subwoofer)
As far as the SA-12 goes, I've only owned RF once and I wasn't impressed. I've owned and listened to many a SA-12 on various power levels (200w to 4KW) they take alot of abuse before thinking about giving up. Also the SA-12 is cheaper, at less from what i've seen of the RF that you picked out.
For the box I've never heard a prefab i was happy with. Realistically building the box isn't all that hard just need someone to design it to your specs.
