I have to run 6 300 amp fuses?

[smoka 10+ year member]

200 amp fuse is overbuilt and underrated.

That is the most retarded thing I've heard all week. Just accept that you have a 2k amp and move on with your install.

and the ambient temperature isn't going to effect a cables current handling capability, thats just ludicrous!!

Wrong. Higher temps means lower conductivity. So you will need to send more current at higher temps or less current at lower temps to equal the same amount of power.

On another note, car amplifiers do not pull a constant load. So there is little harm in car audio manufacturers over-rating power cable as long as its only used for daily use car audio.

Sure a 0ga cable can't handle a constant 300a load over (x) minutes. But with car audio you are only getting spikes of current when the bass hits so it is no where near constant and your average load over time will only be a fraction of your max load.

250a-300a fuses are fine for car audio.

 

[McIntosh 10+ year member]

On another note, car amplifiers do not pull a constant load. So there is little harm in car audio manufacturers over-rating power cable as long as its only used for daily use car audio.

Sure a 0ga cable can't handle a constant 300a load over (x) minutes. But with car audio you are only getting spikes of current when the bass hits so it is no where near constant and your average load over time will only be a fraction of your max load.

250a-300a fuses are fine for car audio.

I certainly agree an amp (car or home) won't draw a constant load like an air conditioner or electric range will (unless test tones are used). 1/0 in a hot car is only rated @70 amps (continuous at 176 degrees F ambient). I'm not sure one can safely assume the average load is 25%. From what I hear at stoplights, bassheads choose music so their subs never get a rest. The fact the wire can't be UL (or any other credible testing agency) approved for ampacity over the National Code also means the quality of the insulation is suspect. Its not tested at all. Real wire is labeled with maximun voltage and wire type at intervals not exceeding 40" (the AWG every 24").

 

[McIntosh 10+ year member]

He runs that cheap *** china aluminum cable I guess.

Not a chance. I also don't drive (or ride) a POS riceburner. I'd wager ALL your "system" is Chinese. You'll have a great future at WalMart.

 

[k_schutte 10+ year member]

I have had a fuseless run of 4/0 for over a year now... no fuses in the battery bank either...

so far, so good

 

[McIntosh 10+ year member]

I have had a fuseless run of 4/0 for over a year now... no fuses in the battery bank either...
so far, so good

Kinda like driving without car insurance. You CAN save some, or lose everything. Fuses are cheap insurance and no monthly payment. Then again I don't go to the boats and give my money away either. To each their own.

 

[TheyDontWant 10+ year member]

Not a chance. I also don't drive (or ride) a POS riceburner. I'd wager ALL your "system" is Chinese. You'll have a great future at WalMart.

my system too? lol

 

[McIntosh 10+ year member]

my system too? lol

More than likely.

 

[TheyDontWant 10+ year member]

More than likely.

so is the Peerless, or the Vifa made in China?

or possibly the Korean made DD amps?

 

[McIntosh 10+ year member]

so is the Peerless, or the Vifa made in China?
or possibly the Korean made DD amps?

I honestly have no idea. I'll admit that when it's the case. Most of the crap I read about on this site is Chinese. Perhaps I prejudged you. If so, I apologize.

 

[mgcauctions09 10+ year member]

That is the most retarded thing I've heard all week. Just accept that you have a 2k amp and move on with your install.


Wrong. Higher temps means lower conductivity. So you will need to send more current at higher temps or less current at lower temps to equal the same amount of power.

On another note, car amplifiers do not pull a constant load. So there is little harm in car audio manufacturers over-rating power cable as long as its only used for daily use car audio.

Sure a 0ga cable can't handle a constant 300a load over (x) minutes. But with car audio you are only getting spikes of current when the bass hits so it is no where near constant and your average load over time will only be a fraction of your max load.

.

You must have never heard of an ap30001d. Hell there are 100's of people who have proven they do rated power and then some with proper electrical.

 

[smoka 10+ year member]

You must have never heard of an ap30001d. Hell there are 100's of people who have proven they do rated power and then some with proper electrical.

Link to proof?

 

[mgcauctions09 10+ year member]

Plenty of talk about these amps, google.com is your friend