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Old 07-28-2005, 08:42 PM   #1
szeny
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Member#: 81383
Join Date: Feb 2005
Chapter/Region: SWIC
Location: Paradise Valley
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07 335i e90
TiAG/Dakota Black

Default getting 14.4 volts

did a search and didnt see much.. this is not on a subaru but would be useful for when i get one. Basically, How do you safely get 14.4volts to your amps withint hurting battery or anything, and keep them powered good. I have a mtx blue thunder 4 channel amp im using for my components and rears and gyou can get double the wattage with 14.4v... any help is great!
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Old 07-28-2005, 09:09 PM   #2
offset
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Sounds like a basics type of question. I would say spend some time on www.BCAE1.com and read my Amp FAQ located in the Sticky to get lots of good info (note the Big 3 info).

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Old 07-29-2005, 08:26 PM   #3
Legacy
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Don't bother obsessing about getting exactly 14.4 volts. The reality is you'll never reach that goal. My Subie runs about 13.5 volts measured at the amp terminals which will be just fine for your MTX amps. Keep in mind the power ratings are FULL power, music is dynamic so unless you're running sine waves you'll never get that constant output anyway.

The voltage in a car will constantly fluctuate considering its also running things like your lights, heater fan, power windows.... The only way to guarantee 14.4 volts would be to use a dedicated Power supply. In the end you won't be able to hear the difference between 13-14 volts.
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Old 07-29-2005, 08:39 PM   #4
szeny
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07 335i e90
TiAG/Dakota Black

Default

thanks for the help guys! i was just wonderinf if its possible cuz amp power is way higher..
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Old 07-29-2005, 08:59 PM   #5
speaker
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Quote:
Originally Posted by szeny
did a search and didnt see much.. this is not on a subaru but would be useful for when i get one. Basically, How do you safely get 14.4volts to your amps withint hurting battery or anything, and keep them powered good. I have a mtx blue thunder 4 channel amp im using for my components and rears and gyou can get double the wattage with 14.4v... any help is great!
This leads into the regulated vs. unregulated amplifier power supply arena. Simple rule of thumb is that an unregulated will make more power as voltage rises to rated power & beyond while an regulated will give you full power across a range of voltages.

In reality though, unless the design is real & truly shyte, output power differences between say, a 2x50W regulated vs. a 2x50W unregulated for example, are likely inaudible.

Go forth son and enjoy without worry. Let not the marketese slow you down.

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