Battery Voltage
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Battery Voltage
Does anyone know how many volts our battery put out? I want to know how many watts my amp is putting out. I just assumed we are running low to mid 13's.
I got a MTX 6500D, with a 4 ohm configuration, which puts out:
12.5V
250 x 1 @ 4 ohms
14.4V
450 x 1 @ 4 ohms
So if it was in the 13's then it looks I'll be pushing around 350 watts which is not anywhere close to what I want.
Also, is there a voltage regulator on alternators that regulates the voltage into the battery from the alternator. I heard this from my friend who says the size of your alternator has no affect on your battery voltage due to this.
I got a MTX 6500D, with a 4 ohm configuration, which puts out:
12.5V
250 x 1 @ 4 ohms
14.4V
450 x 1 @ 4 ohms
So if it was in the 13's then it looks I'll be pushing around 350 watts which is not anywhere close to what I want.
Also, is there a voltage regulator on alternators that regulates the voltage into the battery from the alternator. I heard this from my friend who says the size of your alternator has no affect on your battery voltage due to this.
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[hr]Originally posted by: WhiteRabbit
goes from 250 to 450 with a 2 volt increase? i think we have some if struck by lightning action going on......[hr]
[hr]Originally posted by: WhiteRabbit
goes from 250 to 450 with a 2 volt increase? i think we have some if struck by lightning action going on......[hr]
Bench one and see [IMG]i/expressions/face-icon-small-smile.gif[/IMG]
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Rep Power: 0 yeah MTX always grossly underrates their amps..(except the road thunder series whicha re garbage lol)..
MTX6500D's are rated for 750 at 14.4 volts..but most put out close to 900Wrms... the 81000d's put out in the 1400 watt area...
usually about 10-15% over their 14 volt ratings
MTX6500D's are rated for 750 at 14.4 volts..but most put out close to 900Wrms... the 81000d's put out in the 1400 watt area...
usually about 10-15% over their 14 volt ratings
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From: Car Audioville, Quebec, Canada
Rep Power: 0 me..yeah..and amp draw under different loads....but I have a 160amp alternator so it's a bit different...
with 1600Wrms of amp power, all accessories on, engine idling I dropped to 13.4 volts and drew 131amps playing 50,1000,and 5000hz tones overlapped at my speakers distortioned limit
with 1600Wrms of amp power, all accessories on, engine idling I dropped to 13.4 volts and drew 131amps playing 50,1000,and 5000hz tones overlapped at my speakers distortioned limit
The LA Clipper
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Quote
[hr]Originally posted by: mohawkboom
me..yeah..and amp draw under different loads....but I have a 160amp alternator so it's a bit different...
with 1600Wrms of amp power, all accessories on, engine idling I dropped to 13.4 volts and drew 131amps playing 50,1000,and 5000hz tones overlapped at my speakers distortioned limit[hr]
[hr]Originally posted by: mohawkboom
me..yeah..and amp draw under different loads....but I have a 160amp alternator so it's a bit different...
with 1600Wrms of amp power, all accessories on, engine idling I dropped to 13.4 volts and drew 131amps playing 50,1000,and 5000hz tones overlapped at my speakers distortioned limit[hr]
You probably shook half of Canada!
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Rep Power: 0 I was hitting some 151.8 db's on a linear X jr PC mic [IMG]i/expressions/face-icon-small-smile.gif[/IMG]... not THAT loud...but it hurt like hell to sit in the car (sinus pressure..testicular rattling..seriously..)
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Rep Power: 0 Thanks for all the responses!
With every MTX amp there comes a "Performance Certificate" and it's a test of that specific amp. MTX does this for all their amps and if it doesn't pass their tests then they don't ship it out for sale. My certificate says:
Test Voltage: 12.5V
4 ohm: Max power at 1% THD+N = 378WRMS
2 ohm: Max power at 1% THD+N = 556WRMS
Voltage makes a huge difference in MTX amps. Others not such a big difference. Depends on how they are built.
So if we are running around 13.6V then I should be pushing around 450 or so. Better than what I thought I was running.
With every MTX amp there comes a "Performance Certificate" and it's a test of that specific amp. MTX does this for all their amps and if it doesn't pass their tests then they don't ship it out for sale. My certificate says:
Test Voltage: 12.5V
4 ohm: Max power at 1% THD+N = 378WRMS
2 ohm: Max power at 1% THD+N = 556WRMS
Voltage makes a huge difference in MTX amps. Others not such a big difference. Depends on how they are built.
So if we are running around 13.6V then I should be pushing around 450 or so. Better than what I thought I was running.
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