Currently i have 2 12 JL w6v2 hooked up in my hatchback on a gsr motor with factory gsr motor alternator. i have no problem at all and everything seems to be good. im plannin on selling to get 1 12 Orion HCCA which is rms at 2000 watts. I have a old school autotek mean machine which is 1500 watts at 1 ohm and im plannin to turn the amp all the way up. Will i need to upgrade my alternator?

 

Probably.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by duyfash0 &raquo;</TD></TR><TR><TD CLASS="quote">Currently i have 2 12 JL w6v2 hooked up in my hatchback on a gsr motor with factory gsr motor alternator. i have no problem at all and everything seems to be good. im plannin on selling to get 1 12 Orion HCCA which is rms at 2000 watts. I have a old school autotek mean machine which is 1500 watts at 1 ohm and im plannin to turn the amp all the way up. Will i need to upgrade my alternator?</TD></TR></TABLE>

Do you know how many amps your current alternator produces?

You can figure out how many your new amp will draw, if it's more than your alt produces then yes you will need a new alt.

To determine the approximate current draw (in amperes) of your amplifier (or amplifiers), you must calculate first the total power of each amp (multiply the number of channels by the number of RMS watts per channel). If you have multiple amps, add up the total power figures to arrive at a grand total. Next, double your grand total power figure. Then, divide by 13.8.

1. 2 channels
2. 250 watts (RMS watts per channel)
3. 500 watts
4. 1,000 watts
5. 72.46 amperes

 

Assuming your amp is 1500W RMS and is about 50% efficient you will need close to 200A to make 1500W, with that said, the "average" draw would be 50% of that, maybe even less, that still means 75A-100A are needed just to "keep up".

With 1500W of RMS power I would be looking for the biggest alt. I could find. 94