LSC15's 95 Tacoma 4x4

Go Back   Tacoma World Forums > Tacoma Garage > Audio & Video

Notices

Proper fuse for audio system

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-18-2011, 05:58 PM   #1
OMAC4 [OP] OMAC4 is offline
avidoffroad.com
OMAC4 has a spectacular aura aboutOMAC4 has a spectacular aura about
Marines:
Name: Obed
Joined: Sep 2011, #62789
Location: Chandler, AZ
Gender: Dude
Posts: 48
OMAC4's Tacoma Gallery
Proper fuse for audio system

Hey tw. I need some help determining what size fuse to use with my setup. I have a Kenwood KAC-8150D rated at 1000w max and 500w rms. I will be using 4awg power and ground wire and most likely and agu fuse and holder. Now, I have been trying to find stuff online to answer my own question, but have been running into walls with everything I try. Maybe one of you can help . Thanks!
  Reply With Quote
Old 09-18-2011, 06:14 PM   #3
Senior Member
lbridges will become famous soon enoughlbridges will become famous soon enough
Air Force:
Name: Lee
Joined: Mar 2011, #52434
Location: Indialantic, FL
Gender: Male
Posts: 403
lbridges's Tacoma Gallery
Many are confused, as a maximum you fuse to protect the wire not the amp. The fuse should be within about 18" of the battery and before the wire goes through any metal (like a grommet from engine compartment to passenger compartment). In this use the fuse's job is to prevent an electrical fire. A 4 AWG wire should never carry more than 125 Amps of current. You can of course fuse smaller, down to the size of expected maximum amplifier draw (I am running 4AWG and my fuse is at 80 amps).

A good read can be found at Basic Car Audio Electronics (BCAE), look in their fuse section for specific advice about wire sizing and fuse ratings.
  Reply With Quote
Old 09-18-2011, 06:22 PM   #4
OMAC4 [OP] OMAC4 is offline
avidoffroad.com
OMAC4 has a spectacular aura aboutOMAC4 has a spectacular aura about
Marines:
Name: Obed
Joined: Sep 2011, #62789
Location: Chandler, AZ
Gender: Dude
Posts: 48
OMAC4's Tacoma Gallery
Quote:
Originally Posted by lbridges View Post
Many are confused, as a maximum you fuse to protect the wire not the amp. The fuse should be within about 18" of the battery and before the wire goes through any metal (like a grommet from engine compartment to passenger compartment). In this use the fuse's job is to prevent an electrical fire. A 4 AWG wire should never carry more than 125 Amps of current. You can of course fuse smaller, down to the size of expected maximum amplifier draw (I am running 4AWG and my fuse is at 80 amps).

A good read can be found at Basic Car Audio Electronics (BCAE), look in their fuse section for specific advice about wire sizing and fuse ratings.
Hey thanks man. reading it now.
  Reply With Quote
Old 09-19-2011, 06:48 AM   #5
Senior Member
Lurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shedLurkin is one of the sharper tools in the shed
Joined: May 2009, #17497
Location: Pearland, TX
Gender: Male
Posts: 2,547
Lurkin's Tacoma Gallery
Quote:
Originally Posted by lbridges View Post
Many are confused, as a maximum you fuse to protect the wire not the amp. The fuse should be within about 18" of the battery and before the wire goes through any metal (like a grommet from engine compartment to passenger compartment). In this use the fuse's job is to prevent an electrical fire. A 4 AWG wire should never carry more than 125 Amps of current. You can of course fuse smaller, down to the size of expected maximum amplifier draw (I am running 4AWG and my fuse is at 80 amps).

A good read can be found at Basic Car Audio Electronics (BCAE), look in their fuse section for specific advice about wire sizing and fuse ratings.
+1 on max fusing for the power cable, but most of us should be fusing for the max amp draw that we expect to see since most power wires are oversized for the actual draw used. In your case, if you think your going to get 1000W, then the max amp draw should be between 1000W/12V=83A and 1000W/14.4V=70A, personally I would use the lower amp value as the fuse.

FYI, I am running 0 guage wire to a 400W amp with a 30A fuse. Yes, I know the power wire is way oversized, but I only wanted to pull power wire once.
  Reply With Quote
Old 09-19-2011, 08:33 AM   #6
OMAC4 [OP] OMAC4 is offline
avidoffroad.com
OMAC4 has a spectacular aura aboutOMAC4 has a spectacular aura about
Marines:
Name: Obed
Joined: Sep 2011, #62789
Location: Chandler, AZ
Gender: Dude
Posts: 48
OMAC4's Tacoma Gallery
VERY HELPFUL! Thanks!
  Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
looking for need audio system 619ivanru 2nd Gen. Tacomas 4 11-04-2011 02:21 AM
Who got audio system from Car Audio One in Chula Vista sanga700 Southern California 5 07-27-2011 11:07 PM
New audio system grunt66 Audio & Video 7 12-26-2009 09:40 AM
Complete audio system gtz85350 Buy / Sell / Trade 55 08-17-2009 05:00 PM
Audio System layout LonghornTaco Audio & Video 1 01-01-2009 02:34 PM


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.