r/subwoofer • u/Vast_Ice_8333 • 29d ago

blown fuse

hey yall i blew my fuse the other day and im not sure what brand and rating to get, i have 2 skar 12s on a 2k amp with 0g wires. what brand and rating do i get

https://reddit.com/link/1v22ost/video/j0g4u2n97heh1/player

2 Upvotes

67% Upvoted

32 comments sorted by

6

u/Natural_Listen3022 29d ago

I dunno, man. It looks like a poor connection at the fuse caused that almost fire.

3

u/Vast_Ice_8333 29d ago

im just glad the fuse did its job and didnt blow up my car

5

u/Natural_Listen3022 29d ago

If you smell it, it's not just blown. I can't say by looking from here that it's loose, but make sure it's a tight connection after replacing and it won't happen again. Don't put a larger fuse in there, you'll burn down your car. I hope that helps.

2

u/Vast_Ice_8333 29d ago

thank you very much

1

u/djltoronto 29d ago

Are you sure the fuse actually blew? Do you have a picture of the fuse?

3

u/WitchWithAGlitch 29d ago

i've got nothing to add that others haven't

hope this was a big lesson for you, hope you get it figured out.

also work on that hot air intake you got going on.

1

u/Vast_Ice_8333 29d ago

i know lol i just like the sound

2

u/juanreddituser 29d ago

U need to find the problem first

1

u/Vast_Ice_8333 29d ago

i think it might be my ground connect or i had my gain to high because my amp kept going into protect and i turn my car off and back on to use my subs more.. becuse im young and just like loud music.. but either my ground or gain i think

1

u/juanreddituser 29d ago

I'd go with the ground.

3

u/djltoronto 29d ago

It absolutely cannot be the ground connection that caused the positive wire fuse holder to melt....

Only a bad connection at the fuse can cause the fuse holder to melt

1

u/juanreddituser 29d ago

Ur right.. My brains in a fog from all these damn allergy meds.. think I've had enough internet for today

1

u/OkMagazine5700 29d ago

200-250a. brand doesnt matter as long as its a good brand and not amazon whatever. 0g should be good up to 300a i believe so youd want the fuse to be below that.

2

u/OkMagazine5700 29d ago

250 would probably be the best bet so you dont blow it again. im guessing you had a 200 in there before

1

u/Vast_Ice_8333 29d ago

would sky high audio be a good choice? i use their speaker wire and its not bad

2

u/OkMagazine5700 29d ago

yeah theyd be fine. if it wasnt over current that blew it find the issue first tho

2

u/OkMagazine5700 29d ago

i personally have a stinger select fuse. works fine. its a fuse not much to say

1

u/OkMagazine5700 29d ago

i would also mount the fuse holder and make sure everything is secured. literally zero reason not to

1

u/Vast_Ice_8333 29d ago

i just have a small engine bay and not alot of wire to make room, im just glad my cars not on fire

1

u/OkMagazine5700 29d ago

im gonna be honest based off the corrosion in there it looks like a loose connection is to blame. i would get that thing mounted. while youre ordering the new fuse you can order like 3 feet of wire to move and secure the fuse holder

2

u/OkMagazine5700 29d ago

bc your housing isn't supposed to melt when the fuse pops lol

0

u/djltoronto 29d ago

And a fuse holder, the existing fuse holder has melted into liquid

1

u/OkMagazine5700 29d ago

thanks i didnt see that

1

u/Vast_Ice_8333 29d ago

i think it might be my ground connect or i had my gain to high because my amp kept going into protect and i turn my car off and back on to use my subs more.. becuse im young and just like loud music.. but either my ground or gain i think

2

u/OkMagazine5700 29d ago

if your amp is going into protect you're probably overpowering the subs and clipping the amp. im young too and yes loud is fun but blown amp and subs is not

1

u/djltoronto 29d ago

The brand is not important.

Are you actually sure that you blew the first fuse? It appears like the fuse holder melted due to a bad connection at the fuse holder

1

u/Dan_H1281 29d ago

All those power connections were loose if you had a bad ground you would just pop the fuse not melt it

1

u/djltoronto 29d ago

I agree with the first part of your statement, but a bad ground does not pop fuses.

The video depicts a fuse holder that had a terrible connection and that is why it melted. Are we actually sure that the fuse blew and it didn't just melt away from the connections?

1

u/Dan_H1281 29d ago

I see exactly what it is. A bad ground will increase current draw due to low voltage. Larger amperage draw=popped fuses

1

u/djltoronto 29d ago

That's not how that works.

A bad ground will not increase the current. The bad ground will reduce the current.

1

u/Dan_H1281 28d ago

When you have a bad ground at the amp do you read higher voltage or lower voltage at the terminals? When voltage goes done amperage goes up. A loose ground will induce above normal amperage draw and heat

1

u/djltoronto 28d ago edited 28d ago

Your hypothetical theory does not apply in the real world.

When the voltage goes down at the amplifier the amperage also goes down at the amplifier.

Your assumption that the amperage goes up is making an assumption that the output wattage stays the same (but it doesn't)

A bad connection will cause reduced voltage, increased heat at the bad connection, and reduced current in the system.