Is My Amplifier Blown??

[milkandjuicecomein2litres]

Hey Guys how r u all goin??

Well I have a 2000W American Boss Amp, last week was hooking it up 2 sound system and protection mode keeps coming on when the bass line kept kicking in... Wasnt running to much power just 2 subs and 2 ****ty speakers... My thought was it was only a 10G power/ground wire...

Now my amp is perminately stuck in protection mode!

I tryed isolating each sub/speaker, that didnt work... I tried disconnecting the power/ground and rewire the whole thing, it still stuck in protection mode.

I also wired the same wire up to a 250w amp (Theres a big diff I know) and that amp got power & was fine (I know that probably doesnt mean anything, but thort Id better mention)

I have pulled my amp apart, nothing seems unusual and there is no burnt smell or any smell of any kind... Does anyone have any ideas? All of the fuses are fine and i'm completely stumped. I can provide pics if anyone asks someone please help if you can help me fix this amp you will be forever GOD! :bow:

 

[TheyDontWantMusic]

honestly, its not worth fixing.

it probably does about 200watts rms total, thats real world power, not magical made up power figures.

chances are its dead, and for no real reason other than it was a cheap and nasty amp to begin with.

 

[holdenboy]

Nah, sorry mate...sounds like youve stuffed the amp from running power cable thats too small for the amp, you could take it to a repair place but honestly, buy a brand name amp. Even Response amps will give you good value for money (i recommend the $299 4 x100wrms model to most people). But please, spend the extra $70 and get 4AWG power cable.

Theres a lesson for alot of people here, use 8AWG MINIMUM for all amplifiers, but if it puts out more than ~300wrms go with 4AWG, more than 1000wrms (especially monoblocks) go with 2AWG or 0AWG. In General, the thicker the power cable the better, plus your amp puts out more power as the voltage drop is less with larger cable. Also make sure your earths are sanded/grinded back to bare metal and on a suitable place (not the parcel shelf or back of the rear seats).


Sorry milkandjuicecomein2litres, but i would say the amp has had its day.

Edit....i just saw you had 2 subs and 2 speakers running off this amp, i assume the speakers were running off the front outputs but how were the subs hooked up? i.e. one off each rear channel or both subs running off the rear outputs which were bridged?

 

[StoneX]

honestly, its not worth fixing.

it probably does about 200watts rms total, thats real world power, not magical made up power figures.

chances are its dead, and for no real reason other than it was a cheap and nasty amp to begin with.

You really don't know what you're talking about, do you... I've seen your posts all over the place and they're always negative and in this case, wrong.

Do you realise that "American Boss" and "Boss Audio" are different products? Do you realise that "American Boss" are actually decent products?

If you're on a forum to help, try keeping the negative comments to yourself and just stick with the helpful parts :thumbsup:


To the original poster, if a different amp works in it's place, the American Boss amp is faulty, as the other guys have said. If you really want to, and you have a multimeter, put it on diode check and test the big transistors... If any of them beep constantly between any of the legs, they're most likely dead and it'd be best to replace all the transistors on that channel. It probably isn't worth fixing unless you can do it yourself.

 

[TheyDontWantMusic]

You really don't know what you're talking about, do you... I've seen your posts all over the place and they're always negative and in this case, wrong.

Do you realise that "American Boss" and "Boss Audio" are different products? Do you realise that "American Boss" are actually decent products?

If you're on a forum to help, try keeping the negative comments to yourself and just stick with the helpful parts :thumbsup:


To the original poster, if a different amp works in it's place, the American Boss amp is faulty, as the other guys have said. If you really want to, and you have a multimeter, put it on diode check and test the big transistors... If any of them beep constantly between any of the legs, they're most likely dead and it'd be best to replace all the transistors on that channel. It probably isn't worth fixing unless you can do it yourself.

I know exactly what I'm talking about.

"American Boss" is just as crap as any other "Boss"

if it says 2000watts on the amp, then obviously its crap! because it doesn't do that much power, and only crappy manufacturers have to lie about power figures to make sales!

the amplifier isn't work fixing, even if you can do it yourself.

get a new, reasonable brand amplifier, or possibly even two if your budget can stretch that far?

a monoblock for the subs, and a 2, or 4 channel for the cabin speakers.

lol, "American Boss"

http://search.ebay.com.au/search/se...id=m37.l1313&satitle=american+boss&category0=

 

[TheyDontWantMusic]

from another thread:

I brought a $40 Amp of ebay 2000W american boss works fine has been now for 2 years. Just goes to show you never know.

sounds like a quality product to me

 

[milkandjuicecomein2litres]

Yeah...it DID work for 2 years with out an issue, it never overheated, and never gave me any trouble. Exact same set up except for the 10G wire with a 50A fuse

Keep in mind, that the other amp i wired up was a 250W xplod, which is a bit of diff... 2 channel aswell... and I was only running one sub to see if it worked

Now, is it actually POSSIBLE to blow an amp by using a small wire? I dont know much about audio to be honest, but if anything I thought it would of given less/no power, not overload?

If its a cheap fix job I would do it myself, just need an idea on what parts I need and what im in for, obviously if its too dear I would be better getting a new amp. but still...

 

[StoneX]

I know exactly what I'm talking about.

Of course you do

 

[kopper69]

Nah, sorry mate...sounds like youve stuffed the amp from running power cable thats too small for the amp, you could take it to a repair place but honestly, buy a brand name amp.

I cant see why an amp would die because the power cable is too small. You would simply be restricting the amount of power the amp is getting. I can see over-voltage being a problem for an amp, but it should tolerate a bit of under-voltage. When the amp turns off it takes time for the capacitors inside the amp to discharge, and they will continue to supply a lower voltage as they discharge. If the amp died because of under-voltage you would kill the amp every time you turned it off.

milkandjuicecomein2litres if you have given up on the amp I would be happy to have a quick look at it for you if you were happy to cover the postage.

 

[TheyDontWantMusic]

Of course you do

lol, I'm not the one here saying that a $40 "american boss" amp is a good amp!

:whistling