for just a single 3 or 4 channel amp running 6x9's and a sub would i need to upgrade anything???

For something that strong id still reccomend the alternator be uprated.

damn,didnt think it would be that much! would it be ok to just replace my battery with a yellow top,then get a cap or would i still not be getting enough power? it would be running 3 amps with a total rms of about 1800watts

Well andypsg has just had an 150a alternator and i asked about it and i was quoted £500.

how much would it cost to upgrade the alternator?including fitting as i aint gotta clue even where it is let alone how to change it! hopefully corb will still have one of them yellow tops for sale in a week or so and ill have one of them maybe in my boot!

Well if ur just running 6x9's you'll just be spending £100 on a display item. Your 6x9's wont benefit from it.

dont worry about a cap if yr only doing 6x9's mate, still they do look good with a digi display

ok thanks guys

ive got a more powerfull batterry, do i really need to get a new alternator and cap as all im running at the moment is 6x9 on a amp?

i cant spell so i have done..

Battery (not a very big one, just a little more powerful)
CAP

and im waiting till i get the engine in to do the Alternator

i just got battery at the moment. System should be set up soonish after my alarm is fitted on monday, so will see how long i can play tunes for before upgrading the alt. :thumbs:

Whereas I am a pleb and did this backwards... :(

A power capacitor is also referred to as a stiffening cap. Basically it smooths out the power to the amplifier and when a nice bass drop hits it kicks in to give the amp the extra juice that it needs so it can produce the note as cleanly and loudly as possible.

BUT rule of the thumb with car electrics is and always will be:

Alternator
Battery
Capacitor


Upgrade the alternator first as this is where all your main power will come from to charge your batteries ect, if this is pants then the rest isnt gonna get what it wants.

Upgrade the battery next to hold more power and it will do the electrical system wonders.

Then a cap to finish it all off.

Upgrade all wiring, not forgetting the earth strap for the ground on the battery and the postive + ground on the alternator.

sorry if this sounds stupid, but i only know a little to do with ice!

ive had a alpine 12inch sub with amp in the past but thats about it, saw me mates new car the opther day and it had this massive cap thing init with litle screen saying 12.1 or sumthing??