1. What is the power consumption of your stereo system?
2. Please state how many amps do you have, Brand, etc
3. Any side-effects?

I'm trying to decide if my car will cope adding 2nd amp.

I've currently got an PG 600.4 Amp, which draws is rated to draw 68amp. The car handles it fine atm, with only slight very dimming when idle. However I want to add a min 600W+ RMS monoblock so I can power 2x12" subs off it.

If it's starting to dim at idle, it might pay you to add a capacitor. You'll definatly need to if you're going add a 600W RMS amp and it's doing it now ('cause it will draw a sh*t load more power from the baterry!)...worst case scenerio for that amount of power you want would be to install a 2nd battery in the boot with an ignition isolation switch.

I'm using a 1 farad capacitor with 2 160WRMS amps to drive each sub and a 4x40W RMS amp to drive the main speakers and seems to handle ok. Really crank it up with the A/C on and the lights on (low beam and fog lights) and the digital read out on the capacitor has only been as low as 12.9 V at idle!

At rated power, the 3 amps draw 85 amps.

Yeah if I get another amp, I'll be adding a cap without a doubt!

Before you get a cap get a better battery, if the dipping is still there then think about a cap.

ive got a 1000wt monoblock for my subs
and a 800wt amp for my speakers

i havent had any power issues as yet...

ive got a 1000wt monoblock for my subs
and a 800wt amp for my speakers

i havent had any power issues as yet...

Cool! You know what the fuse ratings of the amps are?
What brand is it?

i using a rockford 1001bd to run a sungle crossfire bmf 15
typical current draw (music) 100A
typical current draw (sine waves) 160A
reccomended alternator size (street driven) 100A
reccomended alternator size (competition) 150A
reccomended capacitor size 2 farad

If your amps draw 100A at rated power, you'd need more than a 100A alternator for normal street use!

If your amps draw 100A at rated power, you'd need more than a 100A alternator for normal street use!

thats straight out of the rockford manual...
"me is sad" should of brought crossfire =[
bigger bang for bucks spent

Hehehe...

Yeah, I know the feeeling :D

[quote="berrjona"]i using a rockford 1001bd to run a sungle crossfire bmf 15

what do you think of the crossfire bmf 15??

[quote=berrjona]i using a rockford 1001bd to run a sungle crossfire bmf 15

what do you think of the crossfire bmf 15??

unreal =] they get really really loud handles heaps of power and are still good for sound quality....

thje sound of on sunday.... 2 15" sola barrics that have been run in.. got 159.8db. then they pullled them out put 2 brnad new crossfires in there straight from box. havent been run in or anything and got 159.9

the bmf is awesome..... not too sure what they retail for though
dynamic power handling for one is 1200w rms for a burp

yeah I know they rule I just got two second handie off a mate. and so far they rock.

yeah I know they rule I just got two second handie off a mate. and so far they rock.

yeah!
thats excellent
how much power are u feeding them?
sealed enclousure or ported?
mines ported and it takes up the entire boot of a hyundai excel....
its been rewound and can take 4000w rms for a 3second burp hehehe.

i would love to get my hands on another one.... but then will need more power to drive it =[

best amp i have seen atm for a 4ohm load is the crossfire tek 150.2 gives about 700w rms into 4 ohm and its only $699

i should of got 2 of them instead of my rockford cheaper and more power =[

mine are gettin about 700 RMS each.
I have isobaric ported enclosure, so it isn't really meant to SPL more SQ but it still goes pretty hard. I am happy. how much did you pay for yours?

$500 as an ex demo that has been rewound and a custom box