Will I Need a Better Alternator?

[CodyDaGoat]

Just got my 96 tahoe yesterday.
Going to throw in my 15” Sundown SA-15 Subs 600W RMS Each
Amp is 1200W RMS
I’m wired at 1 ohm
Will I need to get a HO Alternator? Or would doing just the big 3 be fine?

 

[df2x4]

You're going to need a bigger alternator for sure. Voltage drop gets pretty bad with anything over 800W.