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Thread: watts how many amp alternator do ineed |
    
New member Username: Dobaryder
Cocoa,
Florida
U.s.
Post Number: 4
Registered: Jan-05
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| Posted on Thursday, February 03, 2005 - 03:36 pm: |
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about 2000 watts 4 amplifiers 6 12s
also eq & crossover but i have 2 batteries
and power cap i think my stock alternator
in my 75chrystler is running 68 amps
next size up at parts store is 114 amps
do i need to have one built or what!!! |
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Silver Member Username: James1115
Wilton,
Ct
Post Number: 482
Registered: Dec-04
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| Posted on Thursday, February 03, 2005 - 03:40 pm: |
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2000 watts will draw about 166 amps at peak power so like I said before you will need about a 200 to be in good shape. I see you are running 2000 watts but what kind of watts. The reason I ask is because 2000 Sony watts is like 750 real watts but 2000 US amps watts is really like 2250-2500 so thats why I ask. |
New member Username: Dobaryder
Cocoa,
Florida
U.s.
Post Number: 6
Registered: Jan-05
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| Posted on Thursday, February 03, 2005 - 04:55 pm: |
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audiobahn a80002t 800w @ 4 ohms bridged to 2 dvc
subs
a memphis 16mc300 specs say 542w @ 4ohms bridged
to 2 dvc subs
a mmats d200 i think atleast 400w bridged to
2 dvc subs
very large jensen 5 channel but onlt using the
4 channels for mids & highs id say its about
300 watts
all this and im not dropping like 6 12s should |
Silver Member Username: James1115
Wilton,
Ct
Post Number: 487
Registered: Dec-04
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| Posted on Thursday, February 03, 2005 - 05:39 pm: |
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ok I will tell you why. To get amps you take # of watts and divide by 12. So if you do this formula with a 68 amp alternator you come up with about 800 watts. If thats all your alt puts out then you are going to start pulling from other sources like your battery which under these conditions will not last very long. Your amps arnt putting out near the power that they are capable of. Get a 180-200 amp alt and see if "all this and im not dropping like 6 12s should" it vastly improves. Ohh by the way it isnt the best idea to run different amps to subs like that. I mean you can do it but when using the same amp you know that each sub is getting = power. With multiple different amps all with different power capabilities it makes it very tough to figure that out. plus giving them different powers will produce different sounds at certain levels and will throw off your phase. |
New member Username: Dobaryder
Cocoa,
Florida
U.s.
Post Number: 7
Registered: Jan-05
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| Posted on Thursday, February 03, 2005 - 05:48 pm: |
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thanks, going to try to find high amp alternator.
also planning to order 2 more a80002t'audiobahns
to match the one i have and to drive all 6
audiobahn 12s with three matching amps |
Silver Member Username: James1115
Wilton,
Ct
Post Number: 495
Registered: Dec-04
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| Posted on Thursday, February 03, 2005 - 06:08 pm: |
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good call! |
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