An answer posted by lazer(AK) on June 12, 2006 at 12:45 AM
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:First, you're going to want to check the resistance of your 2 subs. Then realize that when you bridge them they're combine resistance is going to be 1/R=(1/R1+1/R2). So two 2 ohm subs that are bridged across are going to be seen as a 1 ohm speaker. Thus the RMS capability of the amp is going to change. Most amp manufacturers will have RMS ratings at a specific resistance. So you'lll want to pay attention to that. Next up 2 10" subs are overkill (unless you plan on using the car for SPL competitions). Also, your amp should match your subs closely in terms of power output and power handeling. For $150 you're gonna have a pretty crappy soundsystem. I'd suggest a nice 4 channel amp, some 6.5" components with tweeters in the front and seeing if you can fit some 6x9 where the 6x4's used to be. You shouldn't need more than 300W for that entire setup. Also use 0/1 guage wire for power and ground. Also get a seperate capacitor for the system. It makes a big difference in terms of making sure the amp always has power and take a large load off your electrical system. :If this setup doesn't give you some descent sound then tack on a mono amp and a JL stealthbox. I can tell you right now most audio stores and most consumers don't know crap about properly setting up a soundsystem. :1)Match your RMS output of your amp to your RMS power handeling of your speakers (at a specific resistance). :2)Use 0/1 guage wire for your power and ground wire. :3)Install a 1F capacitor. :4)You don't need a 1200W amp for a sub or two unless they're huge 14"+ subs. Even then it may not be necessary. :A note about the capactior. I used to think that only huge stereo systems needed capactiors. However, I had a pair of JL10w0's hooked up to a Blaupunkt 500W amp (so say ~300W RMS). They were bridged in parallel. Now besides the amp hitting thermal shutoff on some hot days (+95F) they hit nice. My lights would occasionally dim when the Flex-A-Lite fan was running, the A/C was on, the headlights were on at night, and I was listening to something with a heavy amount of bass. I made an amp rack for my amp and decided I wanted to put a capacitor in there...mostly to look good. I was amazed at the difference the capacitor made. The subs hit harder and there was NO presence of dimming or lower voltage no matter what. So I'm a believer in them. So for $100 get one. thanks well i have to rule the 4 6.5's out of the question because i got a pair of nice focal 5 1/4's off my cosin for free n they sound great. im gonna attempt to find 1 12" maybe the type r. i did buy a 1 guage ground n power wire so i should be set there. thanks again for ur help
