The Right Electrical System for your Stetsom

[Jeff Stetsom 7]

this post is very important for daily system

This is a lil formula that i use to first get the batteries for the amplifier

If you are buying an amplifier like the 5k2e

lets say you are going to try to keep your voltage around 13.5 volts to try make over 5000rms

lil crazy formula,

too make 5000rm at 13.5 volts

5000/13.5 = 370

you will need more than 370 amps continuous on your system

i would rounded up and use 4 battery that each of them give you around 100ah +

and a alternator to keep up the voltage and charger them !!! ( charger battery you never should have more than 2.4 to 2.5 volts on each cell, its around 14.4 volts ) high voltage can damage your batteries. lose performance on the current ( the most important )

so you can make clean power for your subs for nice time playing not a 30 secs demo

You also need to that every SUB needs a 3db headroom to handle varies peak of tone which is very common on music, this 3db is twice much of power, im not telling you to put over twice much power on the subwoofer but to have a amplifier that gives twices much more power that you subs needs

This will eliminate part of the power compression, when the subs voice coils rise with temperature leading to reducing the efficiency on the sub to 2db

The lowest impedance wont help you to make more power (clean) like 0.5 0.35 this only will kill your batteries faster, this EITHER IS THE RIGHT WAY to fight your impedance rise

To fight impedance rise, is not voltage is current !!! amps

because the amplifier will need more power to produce more specially on low tones

Amplifiers are equipments made to amplify the power you have (battery or power supply) to the subs

If you dont have power (battery ) the amplifier will not make miracles, you cant go against physics

if you this 3db room of power on your system even when you play low tone the amplifier and your electrical system will have power to them

because explain better

when you sub hits at 40hz the power consumption is bigger than 60hz, with this vary tones on the music, you neither need a unlimited power source (like a power supply) to give you power for the whole song

because the batteries are limited source of power, after you subs hits 10 times at 40hz your batteries wont have the same performance and need your alternator are gonna keep up

because the power consumption is bigger to make continuous power

then with a setup with a 3db headroom on power, you subs will be hitting hard all day long because your power consumption is less than what you making

this 3db rule i lot of company in brazil have this in their subs manuals, ( they recommended that so you can get most outta their equipment and be happy, you dont see amplifiers company doing this because it makes a lot of people think this amplifiers dont make power they are telling to use one with twice much power, you know im just letting you guys know

how to setup and get the most outta the amplifiers and subs, because there is a lots facts that makes you amplifier make less power

Ex: I got this store owner for more than 10 year on the market, he wanted to buy a 14k2e and install on a truck and i asked him about the electrical system for the amplifier

this is his answer

im gonna install two Powermaster D3100 which it gives 5000 watts each that should be enough to make 10000 watts

This is the secret on the electrical system for your car always make more power than you need so you can keep it up

nowadays with big amplifier its hard for you to keep it up with the power consumption on the big amplifier

you neither need a lot of batteries or get a power supply

if there is no power produce to keep up with the consumption of the amplifier first the current is gonna go down and efficiency too ( the amplifier will start to get hot) then the voltage

and distortion will be produce and kill the coils on your subs !!

This applies to any amplifier, this is physics

im writing this out because a lot of people a asking this

i hope this helps, im not much of a teacher i cant explain stuff well but here it is

having any question just let me know

[Julian 641]

This is a very basic thing to understand but it seems like most don't.

[Duran 387]

Good write up.

[Jeff Stetsom 7]

Good write up.

Thank you

[ssh 924]

Good write up.

x2

[C3Customs 2]

Great Read!

Edited June 13, 2010 by C3 Customs

[Sir-Lancelot 216]

Well done.

[Kanaworm$ 292]

Very informative! Thank You!

[SPL_Man 20]

nice information

[Jeff Stetsom 7]

Please let me know if i missed something !!!

Im here to help and to make it simple so people can understand what everything works !!

thank you

[shaker1 0]

how many batteries for a 7k2d powermasters 2700 thanks