brynm 10+ year member
CarAudio.com Elite
http://www.rockfordfosgate.com/rftech/woofer_wizard.asp?submitted=true&woofer_qty=2&woofer_imp=2
Great Calculator to show you what you can run. You can Wire two 8ohm SVC subs to a 4 ohm load. That's why I suggested the amp I did earlier, it puts out 450 watts at that load. Always ignore peak or max ratings, every manufacturer rates that differently. Look at the RMS rating.
That truck, depending on year looks like it has a 95 or 110 amp alterantor. I'm running my setup with about 200 watts to my speakers and 1000 to my sub on a Mazda 626 with a stock 85A alternator. You should be able to get away with running that amp at 1 ohm ok. If you want two subs when you upgrade get two dual 4 ohm, or two dual 1 ohm subs. That allows you to wire them to 1 ohm final load.
Great Calculator to show you what you can run. You can Wire two 8ohm SVC subs to a 4 ohm load. That's why I suggested the amp I did earlier, it puts out 450 watts at that load. Always ignore peak or max ratings, every manufacturer rates that differently. Look at the RMS rating.
That truck, depending on year looks like it has a 95 or 110 amp alterantor. I'm running my setup with about 200 watts to my speakers and 1000 to my sub on a Mazda 626 with a stock 85A alternator. You should be able to get away with running that amp at 1 ohm ok. If you want two subs when you upgrade get two dual 4 ohm, or two dual 1 ohm subs. That allows you to wire them to 1 ohm final load.