2ohm vs. .5ohm

[rumple4skin 10+ year member]

iv had thissetup for awhile now. i had a hifonics 1606 that i ran at .5ohm for about a year before i blew it. had it wired with 2gauge and a 100a fuse. over the year id say i blew the 100a fuse atleast 4 times but never damaged the amp. after blowing it after a year it was more worth it to get a 2607 with 0gauge wiring this time trying not to blow anything up and i wired it up to 2ohms( letting it put out at most 1700w rms) with a 100a fuse. now the fuse never blew in this set up and i ran it for 6 months the same way. when the amp did fry the fuse halfway burnt but it did not brake and still had good contact points. i want to know why this fuse did not go out before the amp did and why it would with half the amp pushing twice as hard on the same electrical. im guessing the 2607 pulled to many volts and it fried from lowvoltage but if it did that why did it not blow the 100amp fuse?

Click to read more...

 

[bonesninja 5,000+ posts]

definately pulled too many volts

 

[gunz4me 10+ year member]

You could have had a defective fuse. I had an amp's toroid catch on fire after Rockford Fosgate's techs told me to move my Punch 150 up to a 40 amp fuse in 1990. They ended up sending me a new amp due to their bad advice.

Also, don't confuse low volting your amp with the fuse rating. Low voltage will kill many amplifiers WELL before the fuse pops or the low voltage protection circuit kicks in!

 

[thegreatestpenn 5,000+ posts]

what kinda car you got? do you blast your music regularly?

 

[rumple4skin 10+ year member]

what kinda car you got? do you blast your music regularly?

ya i turn it up when the kids arnt in the car but as iv said i have ran it the same way for 6 months now and never had a prob. lots of dimming tho. can i just buy a hc2000 and fix the low voltage prob or do i need to upgrade my alt before i do a bat. car is a 96taurus

 

[bonesninja 5,000+ posts]

i say it was voltage drops...nothing more

 

[rumple4skin 10+ year member]

easey cheap fix??? i can upgrade the alty for around 50 bucks or i can drop 200 on a bat but after fixing the amp puts me in a hurt for a month or so

 

[thegreatestpenn 5,000+ posts]

upgrading the alt would yield better results, but a big batt would be of use too.

 

[Supergumby5000 5,000+ posts]

easey cheap fix??? i can upgrade the alty for around 50 bucks or i can drop 200 on a bat but after fixing the amp puts me in a hurt for a month or so

where? probably a POS alternator.

 

[rumple4skin 10+ year member]

but big bat dosnt fix anything but let the amp run at the proper voltage the alt will keep it at a safe 12.5 right? or over load my bat and burn it out??

 

[Enellz 10+ year member]

since the alternator is only 50 get that. and upgrade your front better.

 

[rumple4skin 10+ year member]

where? probably a POS alternator.

buddy of mine rebuilds them and upgrades them

 

[bonesninja 5,000+ posts]

but big bat dosnt fix anything but let the amp run at the proper voltage the alt will keep it at a safe 12.5 right? or over load my bat and burn it out??

an alty can only produce so many amps....after that, the battery takes up the slack

 

[rumple4skin 10+ year member]

an alty can only produce so many amps....after that, the battery takes up the slack

so no matter what i do to the alty i cant stop this without keeping the amp way out of reach of low voltage and make it sit at 14.4 or nothing at all?

 

[rumple4skin 10+ year member]

i guess i need to down grade to one 12 untell i can get the bat?atleast id blow a sub for once.....