Z71TahoeSubz

That sounds good, another thing since crescendo amps are soo power hungry especially since I have a 5500 watt do you think the xs power d3400 with the stock battery and the stock alternator with a 225 amp powermaster high-amp alternator will be good for that setup and gibe the amp enough power?

Still want to see some more ideas to decide what I should do !

the amp also puts out 1500 on 4 ohms which is a total of 6000 watts which might be alittle to much but obsidians are also very underrated and can hold a lot more power than there RMS actually sais

I have a z71 Tahoe and I'm planning on getting 4 obsidian 15s dual 4 ohms with a crescendo 5500w how should I run it? I also have a dual mount bracket with 2 alternators and a xs power d3400 battery as an extra in the back. I'm not worried about under powering it at all but what should I do to make sure i don't over power?