Memphis 4k fuse

[JoeK 10+ year member]

ok thx. yeah i was on toolmaker but they come out and go sideways but they dont go out far enough if you can see that in the pic, and they will hit the casing, They have to be angled too.http://toolmakermetalworkz.com/ccdata/images/imageMain_0_9.png

He can make custom ones, not just what is on the website

 

[garretttt4 10+ year member]

He can make custom ones, not just what is on the website

ok ill have to email him then. but you think this amp should have a total fuse rating to it of 300 amps?

 

[garretttt4 10+ year member]

He can make custom ones, not just what is on the website

do you know the email? i cant find it on the shop site... lol

edit: nvm i got it.

 

[JoeK 10+ year member]

ok ill have to email him then. but you think this amp should have a total fuse rating to it of 300 amps?

300a from front to back run, 150A per wire into the dual input

 

[garretttt4 10+ year member]

300a from front to back run, 150A per wire into the dual input

Ok. Got it. Haha thx.

 

[dumpbeast86 10+ year member]

http://www.memphiscaraudio.com/documents/MC%20CLASS%20D%20MONO%20BLOCK%20SUBWOOFER%20AMPLIFIER%20MANUAL%20080818.pdf

posted this for you a few weeks ago, guess you did not read it. fusing on page 6. not sure why memphis didn't put dual inputs on that amp, but sounds like you got that figured out

 

[garretttt4 10+ year member]

http://www.memphiscaraudio.com/documents/MC%20CLASS%20D%20MONO%20BLOCK%20SUBWOOFER%20AMPLIFIER%20MANUAL%20080818.pdf
posted this for you a few weeks ago, guess you did not read it. fusing on page 6. not sure why memphis didn't put dual inputs on that amp, but sounds like you got that figured out

O ya! Thx I couldn't use the link last time on my phone.....

 

[TaylorFade 10+ year member]

I'm going to agree with @NASTY08IMPALA;.

Fuses are to protect your CAR. Not your amp. You fuse according to wire size/capacity. If you feel like you are over-fusing for your amp, then by all means, use a smaller one. But a fuse isn't going to protect you from a voltage spike and you aren't all of a sudden going to get huge amperage spike and blow your amp. And a fuse certainly isn't going to protect your amp from a low voltage situation which is the downfall of probably 99% of "blown" amps.

You think the fuses in your house are there to protect the light bulbs?

 

[dumpbeast86 10+ year member]

[quote name='TaylorFade']I'm going to agree with @NASTY08IMPALA;.

Fuses are to protect your CAR. Not your amp. You fuse according to wire size/capacity. If you feel like you are over-fusing for your amp, then by all means, use a smaller one. But a fuse isn't going to protect you from a voltage spike and you aren't all of a sudden going to get huge amperage spike and blow your amp. And a fuse certainly isn't going to protect your amp from a low voltage situation which is the downfall of probably 99% of "blown" amps.

You think the fuses in your house are there to protect the light bulbs?[/QUOTE]

and why wouldn't it? you do know as voltage drops, amperage increases

 

[UnderFire 10+ year member]

wow it is my first time to hear the use of fuse is to protect the wire..in that case use bigger wire disrecard the fuse...useless...

You're missing the point, if you get a direct short, the fuse blows instead of the wire catching on fire and burning your car to ashes.

 

[TaylorFade 10+ year member]

and why wouldn't it? you do know as voltage drops, amperage increases

Uhh... I = V/R?

A decrease in voltage decreases current if all other factors remain constant. What factor do you reckon is changing? Resistance? Please explain.

 

[NASTY08IMPALA 5,000+ posts]

[quote name='TaylorFade']I'm going to agree with @NASTY08IMPALA;.

Fuses are to protect your CAR. Not your amp. You fuse according to wire size/capacity. If you feel like you are over-fusing for your amp, then by all means, use a smaller one. But a fuse isn't going to protect you from a voltage spike and you aren't all of a sudden going to get huge amperage spike and blow your amp. And a fuse certainly isn't going to protect your amp from a low voltage situation which is the downfall of probably 99% of "blown" amps.

You think the fuses in your house are there to protect the light bulbs?[/QUOTE]

Couldnt have said it better

 

[tommyk90 5,000+ posts]

and why wouldn't it? you do know as voltage drops, amperage increases

You are making a correlation that is completely install dependent. One does not always go hand in hand with the other.

Your example only holds true if the amps is making the same power at both the higher voltage (low amperage) and lower voltage (high amperage). This is most likely not the case.

Say you are running a stock 100 amp alt. Your wire is fused at 300 amps. Your amp is capable of pulling 200 amps. You will sustain voltage drop without even getting close to the fuse rating (without even taking into consideration my other point below).

And further, fuses are NOTORIOUSLY crappy at blowing at their rating. Most fuses will let through 5x their rating without breaking a sweat. Thus, your 300 amp fuse just turned into a 1000 amp fuse and good luck trying to pop one of those things because of your "low voltage" situation.

T-fade is correct. The fuse is there to protect the wire and car, not your amp.

 

[dumpbeast86 10+ year member]

You are making a correlation that is completely install dependent. One does not always go hand in hand with the other.
Your example only holds true if the amps is making the same power at both the higher voltage (low amperage) and lower voltage (high amperage). This is most likely not the case.

Say you are running a stock 100 amp alt. Your wire is fused at 300 amps. Your amp is capable of pulling 200 amps. You will sustain voltage drop without even getting close to the fuse rating (without even taking into consideration my other point below).

And further, fuses are NOTORIOUSLY crappy at blowing at their rating. Most fuses will let through 5x their rating without breaking a sweat. Thus, your 300 amp fuse just turned into a 1000 amp fuse and good luck trying to pop one of those things because of your "low voltage" situation.

T-fade is correct. The fuse is there to protect the wire and car, not your amp.

i have argued with you about electrical before. i'm not gonna argue with you guys though, as i am viewed a "noob" to you and it's a losing battle

 

[tommyk90 5,000+ posts]

i have argued with you about electrical before. i'm not gonna argue with you guys though, as i am viewed a "noob" to you and it's a losing battle

You posted information without backing it up (again).

My offer still stands. Prove me (us) wrong and I'll gladly accept that I was wrong.

I gave a detailed example showing that your post was incorrect. You come back with another general "I'm right, you're wrong, and I don't need to prove it" post that once again shows your lack of discussion/debate skills.

Amperage increases when voltage drops IF AND ONLY IF the same power is being produced. That's the bottom line. You can't make such grossly overgeneralized posts and not expect some kind of response.