Anthony10111 Posted February 26, 2021 Report Share Posted February 26, 2021 so I'm considering doing the big 3 upgrade on my 99 suburban. any tips or things I should know? I'm running 1700rms to my cabinet with 2 12s . Do I even need the big 3? When would the big 3 be necessary Link to comment Share on other sites More sharing options...
Dafaseles Posted February 27, 2021 Report Share Posted February 27, 2021 Do it. Plenty of videos on YouTube to show you how boss. It's good for your system and for your vehicle 2011 Chevy Silverado under construction My build log here. Check it out! Link to comment Share on other sites More sharing options...
1point21gigawatts Posted February 27, 2021 Report Share Posted February 27, 2021 Agreed. You need a big 3 on that amount of rms. 1500 rms or more is when a big 3 needs to be done, at least. And at 2000 rms or more is when an extra battery should be added with a big 3. Honestly, 1500 rms an extra battery should be added too. But I’m guessing you are probably using a hifonics amp or something like that, so you just need to do a big 3 upgrade with 1/0 ofc. “How can we help you?” “And don’t forget to tell them that the customer isn’t always right.” Link to comment Share on other sites More sharing options...
Anthony10111 Posted February 27, 2021 Author Report Share Posted February 27, 2021 Okay thank you guys I'll be doing it within the next 2 weeks.. Link to comment Share on other sites More sharing options...
Anthony10111 Posted February 27, 2021 Author Report Share Posted February 27, 2021 I have voltage drop to 12 instead of 14 when I'm stopped, and my gas gauge is funny, and my lights flicker. But my engine to chassis ground strap is broke .. So we will see the results in a couple weeks.. Link to comment Share on other sites More sharing options...
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