figure out what the load will be on each amp (*usually* it's two ohms on a sub amp and 4 ohms on the full range multichannel amp) and see waht the output is for each amp at those loads in RMS wattage. Let me know what the total is for each amp individually (efficiency will be different for each amp) and I can ballpark what you'll need. remember an amp rated at 1000 watts doesn't mean it draws that much power continuously, so you can suually take a percentage of that for continuous listening use power consumption.
Total Output: 220+ AMPS Idle Output: 110+ AMPS Full Output at 1200 RPM !
do note the drop in output at idle. this is typical of a rewound or OE alternator (as opposed to one build by a place like Iraggi, specifically for audio use) so below 1200rpm, you won't be at full output. This isn't a big deal as long as you're aware of it, and don't mind revving the engine just slightly at idle if you need the extra juice.
figure out what the load will be on each amp (*usually* it's two ohms on a sub amp and 4 ohms on the full range multichannel amp) and see waht the output is for each amp at those loads in RMS wattage. Let me know what the total is for each amp individually (efficiency will be different for each amp) and I can ballpark what you'll need. remember an amp rated at 1000 watts doesn't mean it draws that much power continuously, so you can suually take a percentage of that for continuous listening use power consumption.
so for the PRS-D2000SPL's, they will both be at 1ohm-2000watts RMS each
plus a 10ZX350.4 at 4ohm's 60wattsX4 RMS
so roughly 4240 watts RMS continuous???
this kinda seems like a LOT for an RMS rating, did i do it right?
yeah that's correct. you'll really want a couple of batteries in back, isolated from the starter battery and wired in parallel.
that's a draw at full output of 428A, but figure at half of full volume, continuous, you're talking a tenth of the power, so around 50A, plus another 50A for the car's needs, so that 220A alt would be fine. The additional power available is good for sudden burst demands.
My last car had a Lestek alternator in it. My current car has an MCR custom wound alternator.
