what sub/amp combo to purchase?

DAMN! That is insane! The best place to buy electronics is indeed the internet. It is so much cheaper than any store can offer. Got any pictures of your current setup?bp

Yep, Aftermarket headset bellow the factory unit, in front of the gear knob. Carbon fibered the trims myself. Factory was silver. Subs behind rear seats forward facing. Rear Splits Whats in there

Sold my current subs today, So I will be ordering the new gear once I get the money together. CANT WAIT!!!

Looks good. Post pictures of the new stuff when you get it.bp

Certainly will, Just found out one of my auto electrician friends can source me as much 0Ga wire as I need FREEBIE :-D awesome news. Plus all the 0Ga lugs.

Ordered the Hifonics and the two Alpines from the states, should get to Australia in 2weeks or so.

Checked what my alternator puts out today, apparently it's 130Amps. I want to upgrade my battery to the Optima yellow top but with 1700W RMS and 0Ga wire will the alternator have a heart attack so to speak?? Unfortunately I cannot simply strap any aftermarket alternator onto my car as it is still under manufacturer warranty.

Another couple of questions: I have 0Ga wire traveling from the battery in the front to the boot, Will this require a 350amp ANL fuse or less? Is it best to run my 0Ga ground wire to the chassis or back to the battery terminal? Also can I run the 0Ga power wire from the battery to the capacitor in the boot then from there just go 4Ga to the amplifiers or do I have to stay at 0Ga to cancel out resistance and provide the correct power the mono block?

Just read that you should multiply your total RMS wattage by your voltage, so if I have 1500RMS the I require a 150amp ANL fuse. Is this correct. I thought you where protecting your wire, Not your amps with your forward fuse.

The amps should have fuses on them, just add up how much the amps fuses are and use an inline fuse that big. Example (2) 30 amp fuses would be 60 amps. Your inline fuse should then be 60 amps. You're exactly right, you need to protect the wire and that is how. Also, you're fine with dropping down to 4ga wire after you run the 0ga to the capacitor provided it is within about 18" of the amps. The best thing is to bolt your ground wire to the chassis of the car. And that isn't true for the fuse to use, so don't follow that. There is a test to get approximate true wattage which is: although your amp may say 1700 watts, but if it only has (2) 20amp fuses on it that is 40amps total, multiply that by your battery voltage when on, usually 14.4v and you'll get the closest to the true power of the amp which would be 576watts when the car is on and 12v when the car is off so 480watts when the car is off.bp