Fordmods Logo

problem with amp 

 

Page 1 of 1 [ 7 posts ] 

 
 Post subject: problem with amp
Posted: Thu Jan 29, 2009 7:34 pm 
Getting Side Ways
Offline
User avatar

Age: 28

Posts: 1110

Joined: 25th Mar 2007

Gallery: 7 images

Ride: BA MKII Fairlane GHIA

Location: Berwick
VIC, Australia

hey guys i have a earthquake tnt 4ch
its runs my sub on 3rd and 4th channel which is bridged
and runs y alpine type s splits on 1st and 2nd

wiring is all 4ga with a 80amp fuse near battery

earth is fine ..also 4ga

this is all installed into a ba falcon that has the stock body ground for the battery which is 8ga by the looks of it.

now the problem is the amp cuts out and goes into protection mode at around 22 volume..
this is better than what it was when i had 8ga wire it only went to 15 volume..

can you guys explain why it cuts out its got me stuffed
Top
 Profile  
 
 
 Post subject: Re: problem with amp
Posted: Thu Jan 29, 2009 11:08 pm 
Oompa Loompa
Offline
User avatar

Age: 49

Posts: 34

Joined: 29th Jan 2009

Gallery: 5 images

Ride: XA Falcon / EA Falcon

Location: yarra glen victoria
VIC, Australia

Kenay wrote:
hey guys i have a earthquake tnt 4ch
its runs my sub on 3rd and 4th channel which is bridged
and runs y alpine type s splits on 1st and 2nd

wiring is all 4ga with a 80amp fuse near battery

earth is fine ..also 4ga

this is all installed into a ba falcon that has the stock body ground for the battery which is 8ga by the looks of it.

now the problem is the amp cuts out and goes into protection mode at around 22 volume..
this is better than what it was when i had 8ga wire it only went to 15 volume..

can you guys explain why it cuts out its got me stuffed


Earth Quake Like to suck POWER you may have to goto 0ga
Also is the paint scratched of where it goes to the body?
is it a screw or a bolt if a screw USE a nut & bolt
plus your amp tuning may be wrong?
hope this helps
Parrot
22 years in car audio instalation
http://www.rlsnell.20m.com
http://www.autowreck.com.au
http://z3.invisionfree.com/APV/index.php?
http://www.youtube.com/user/parrotscaraudio
Top
 Profile  
 
 
 Post subject: Re: problem with amp
Posted: Thu Jan 29, 2009 11:48 pm 
ACT Cruise Moderator
Offline
User avatar

Age: 36

Posts: 6275

Joined: 24th Nov 2004

Ride: '06 BF GT-P

Power: 293 rwkw

Location: Canberra
ACT, Australia

Upgrade the earth from the body to the battery, AND add an earth from the battery to the alternator mount point.

 

_________________

1998 DL LTD in Sparkling Burgundy, daily, 302W, stereo, slow - 97.5rwkw
2006 BF GT-P in Ego, mods. 293rwkw - 12.427@109 - 0-1000m 24.838@221

Top
 Profile  
 
 
 Post subject: Re: problem with amp
Posted: Sun Feb 01, 2009 7:52 am 
Getting Side Ways
Offline
User avatar

Age: 28

Posts: 1110

Joined: 25th Mar 2007

Gallery: 7 images

Ride: BA MKII Fairlane GHIA

Location: Berwick
VIC, Australia

data_mine wrote:
Upgrade the earth from the body to the battery, AND add an earth from the battery to the alternator mount point.


so upgrade the stock body earth to 4ga?

how would i earth onto the alternator and what size wire?



cheers kenay
Top
 Profile  
 
 
 Post subject: Re: problem with amp
Posted: Sun Feb 01, 2009 12:30 pm 
Oompa Loompa
Offline
User avatar

Age: 49

Posts: 34

Joined: 29th Jan 2009

Gallery: 5 images

Ride: XA Falcon / EA Falcon

Location: yarra glen victoria
VIC, Australia

Kenay wrote:
data_mine wrote:
Upgrade the earth from the body to the battery, AND add an earth from the battery to the alternator mount point.


so upgrade the stock body earth to 4ga?

how would i earth onto the alternator and what size wire?



cheers kenay


upgrade the altinator to body earth to no less than 4ga at the tensioner arm bolt at the motor end to battery not the altinator adjust tension end
Top
 Profile  
 
 
 Post subject: Re: problem with amp
Posted: Tue Feb 03, 2009 8:23 pm 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 4946

Joined: 15th Nov 2004

Gallery: 2 images

Ride: Trik'd up EFII XR6

Location: Perth
WA, Australia

Also mate before you go playing with earths etc just try either setting your amplifier gains (if your amp allows you to change them physically on the amp) right down or to the defaults should 0db...

Then disable any equaliser effects such as Loud mode etc

Does protection mode stick kick in....you may have things cranked up too high....just cause it sounds good and your speakers/woofers go louder doesnt mean its safer for you or your equipment

 

_________________

For Sale: 25 Farad Rockford Fosgate Competition Series Carbon Cap, more to come - pm me if interested

Top
 Profile  
 
 
 Post subject: Re: problem with amp
Posted: Tue Feb 03, 2009 8:30 pm 
Getting Side Ways
Offline
User avatar

Age: 32

Posts: 1833

Joined: 3rd May 2007

Gallery: 8 images

Ride: AUII XR6 Uterus

Location: South Coast
NSW, Australia

quite obviously though if you can't use your amp to it's full potential then theres something wrong. it's not about bandaid solutions when it comes to potentially burning your pride and joy to the ground.

if i had a dollar for every 12v electrical fault thats ruined many a thousand dollars worth of car i'd be alot better off.also amount of mates that have welded copper cable to the body of their car is surprisingly amazing,

conclusion: do things properly.keep earths short and the same size if not bigger than the supply, always use properly rated fuses AND HOLDERS! and always ensure all connections are tight and longivity is kept in mind.

 

_________________

Not to get technical, but according to chemistry alcohol is a solution.

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 7 posts ] 

Who is online

Users browsing this forum: No registered users and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Sat Dec 16, 2017 8:53 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names