10 replies to this topic

[BLACK96regcabHighrider]

Been putting this off for way too long… I’ve never been good at audio or electrical stuff, but I have a quick question that I’m sure audio guys could answer in a second.

I have an sub/amp in my truck and had an inline fuse between the positive battery terminal and the amp. It fell out one day and I just never felt like picking one up, a loud stereo isn’t a necessity to me. Well now I feel like hooking it back up so it at least sees some use.

How do I know what size fuse to get? I was told to add up the fuses on the side of my amp and try to get a fuse as close that that as I can but stay under. True?

[rustyg]

I usually use 30a-60a fuses in my stereos. If it's not too big of a system you should be fine with a 30a.

[N.J.C.]

Look up or call the manufacturer and tell them the model number. They'll be glad to inform you what size inline fuse it will require. Some systems are different. Mine requires a 100 amp fuse which isn't available at Walmart...if you know what I mean.

EDIT:

I just did a quick search on Crutchfield for my make and model and below in the description it tells exactly what size fuse is required. Here's mine for example.

http://www.crutchfie...r-bd1000-1.html

Edited by N.J.C., 15 May 2012 - 01:07 PM.

[RareBreedZ]

go by the guage of wire your using.

8Ga - 40A
4ga - 60-80a
0-2ga - 100-120a

[N.J.C.]

go by the guage of wire your using.

8Ga - 40A
4ga - 60-80a
0-2ga - 100-120a

Not always true. Mine allows use of a 4 AWG wire but requires at least a 100 amp fuse. Go by the manufacturers specs.

[BLACK96regcabHighrider]

Thanks for the info guys. I'll look it up by mfg and go from there. I know NOTHING when it comes to audio.

To prove how much I don't pay attention to audio, I couldn't even tell you what kind of sub's I have.
Thought about selling the amp and sub to regain some of the spacious interior a single cab offers , but figured I'd try it out once more.

[Seapahn]

Here's the basic info we need:

1. What is the thickness (gauge) of the wire you are using?
2. How long is the wire?
3. What have you hooked up to it? Amps usually have a fuse on them ... look at those fuses and report their rating.

If you don't feel like doing any of this, you can start with a 30A fuse .. if that blows, go up to 40 or 50. More than that and you might want to make sure your wires can handle it

[BLACK96regcabHighrider]

It's 4AWG, maybe 6-7ft? The amp has 2 30A fuses.
Here's the mfg info
 amp.png   207.35K   11 downloads

So 30A inline fuse?

[Seapahn]

I'd go with 50A (or 60A) .. I seriously doubt you'll blow a 50A though ... the 2x30s indicate it could have a max draw of 60amps.

[BLACK96regcabHighrider]

I'd go with 50A (or 60A) .. I seriously doubt you'll blow a 50A though ... the 2x30s indicate it could have a max draw of 60amps.

Thanks, I'll pick up a 50A first. Shows how much I know about electrical/audio haha.

[BLACK96regcabHighrider]

50A did the trick so far. Thanks for the input!