fuse amp?

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BangBang

Silver - Posts: 287

Joined: October 25, 2003

Location: United States

Posted: March 04, 2004 at 2:33 PM / IP Logged

the fuse in the fuse holder for my 4 guage wire to a distribution block wut fuse should i use ?

i just upgraded shietz to a 4 gauge and it sounds like crap u know y?

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: March 04, 2004 at 2:59 PM / IP Logged

The size of your power cable will not affect sound quality. Use the correct size fuse for the load you are putting on the system. 4AWG wire is rated at 105A max per NFPA70.

Shietz? What is a shietz? Like what's on your bed?

BangBang

Silver - Posts: 287

Joined: October 25, 2003

Location: United States

Posted: March 05, 2004 at 5:34 AM / IP Logged

DYohn wrote:

The size of your power cable will not affect sound quality. Use the correct size fuse for the load you are putting on the system. 4AWG wire is rated at 105A max per NFPA70.

Shietz? What is a shietz? Like what's on your bed?

yeah after trying to installed 2 amps it dint' sound nice. so i reinstalled back my old stuff... the 8 guage geear. and it sounded insane. like it was brand new... wut went wrong?

Clean Install

Silver - Posts: 446

Joined: January 03, 2004

Location: United States

Posted: March 05, 2004 at 5:41 AM / IP Logged

what type of power cable to you run?

the 4awg and the 8awg

If we learn from each success and

each failure, then we can improve ourselves

Clean Install

Silver - Posts: 446

Joined: January 03, 2004

Location: United States

Posted: March 05, 2004 at 5:55 AM / IP Logged

say by the way to figure out what size fuse you will need all you have to do is take the rms of your amps and divide it by your vehicles idle voltage

400watts(rms)/12.6volts=31.8amps

so you would need about a 30-40amp fuse

If we learn from each success and

each failure, then we can improve ourselves

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: March 05, 2004 at 8:35 AM / IP Logged

If the sound quality of your system changed by running diferent power cables then you changed something else as well. Power cable by itself will not affect the sound quality of an amp other than adding noise or hum or buzz if you do something wrong. Is that what you are talking about?

Paradigm

Silver - Posts: 284

Joined: November 25, 2003

Location: United States

Posted: March 05, 2004 at 9:54 AM / IP Logged

CLEAN INSTALL wrote:

say by the way to figure out what size fuse you will need all you have to do is take the rms of your amps and divide it by your vehicles idle voltage

400watts(rms)/12.6volts=31.8amps

so you would need about a 30-40amp fuse

Can someone please verify this? I do not think this is right. I thought all that told you was how many ADDITIONAL amps you will be adding to your total load. Help please, anyone?

VEHICLE: 2002 GMC Sonoma ZR2

Alpine CDA-7940

AudioControl EQT x2

JL Audio 1000/1

JL Audio 10W6 (originals) x3

Kicker ZR120

Kicker ZR460

Polk GXR-6 x4

Polk GXR-4 x2

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: March 05, 2004 at 10:01 AM / IP Logged

Basic ohm's law. In a DC system, P=IE, or (P)power = (I)current X (E)voltage. So Current = Power/Voltage. You would always use the total power (RMS) of all amps and other equipment being fed off a circuit.

Prophit

Copper - Posts: 79

Joined: March 04, 2004

Location: United States

Posted: March 05, 2004 at 10:09 AM / IP Logged

It might be your ground too.. Might want to check to see if the ground wire if 4Guage is solid.. Normally when this happens i like to connect it directly to the battery.. if theres a change then its a bad ground.. Might want to make sure your connected to bare metal. Sand or grind away any extra paint chips.. Along with make sure your using an effectient size connecter and bolt.. No point in using 4 guage if your bold is half the size of the cable.. Try that and see if that makes any difference.. Also as for a fuse.. i would recomend atleast 30amp..

wayland1985

Silver - Posts: 353

Joined: December 31, 2003

Location: United States

Posted: March 05, 2004 at 10:35 AM / IP Logged

Don't run your RCAs on the same side as the power cable.....that may be ur problem if you did that.....bigger wire can hold more power....more power+rca's(nearby)= decreased SQ

~wayland

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