I’m gonna be running a sundown saz 3500 at 1 ohm on a 15 inch zv5 in a 1997 Ford Expedition. Right now I have for my mids and highs massive audio 5x7s in all 4 doors and a 1 inch super tweeter in each front door. Up front I’m running at 2 ohms per door and in back I’m running 4 ohms per door. I’m gonna add 2 6x9s in the back to run at 2 ohms on every channel so I’m getting full power to each channel. I have pushing my mids and highs a Rockford prime r300x4. Birth sheet says 423 rms. I didn’t go all out on my mids and highs. Will this be sufficient for the sub and sub amp I have or will I need more?