Amplifier Shutoff Problems. Please Help

[radel2dope 10+ year member]

First, a question about my current amp. I have an Audiobah A2150HCT. If there is no sub connected to it, it powers up just fine, also if the sub connected to it is playing at a very low level, it still stays on. but as soon as I turn it up to any level that would be OK to listen to, the warning light on the amp turns on, and shuts off for a couple seconds, then the blue light comes back on for a split second before the process repeats itself over and over. I have heard that this kind of thing may be caused by the amp recognizing a messed up voice coil, I was wondering if that could be the case because it is quite likely that the voice coil on the Audiobahn AW1208T could be bad (Dual 2 Ohm VC). On the other hand, I hooked it up to a different sub, and it did the same thing, could it be something with the speaker connections to the amp? Thanks for any insight.

Click to read more...

 

[DFW40 10+ year member]

Are you wiring the voicecoils to a 1 ohm load that you amp cannot handle? If so wire them in series to get a 4 ohm load and see what happens. If you have tried this already then I apologize. Also, do you have a good ground connection and thick wire...also is the power wire of decent size.

 

[squeak9798 5,000+ posts]

Could be the gain/bass boost set too high and kicking the amp into protection when you turn it up. Or, as mentioned, could be wired to an impedence it's not stable to.

 

[radel2dope 10+ year member]

Thanks for the replies, but the amp is one ohm stable, and it does the same thing when the gain and bass boost are all the way down. I have 4 gauge power wire which is the biggest that will fit into the amp, and 8 gauge ground wire. I ran it like that for about 4 months and have just started having problems

 

[pks71 10+ year member]

Upgrade the ground to match that of the power. Might not solve ur prob. but it will help at loud levels

 

[bigred78797 10+ year member]

It sound's like your amp isn't grounded well or is not getting in the power that it needs. That amps is a 1200w stable amp i would recommend no less than 2 guage wire. Yes it only accepts 4 guage i know this but run 2 guage until about 1 or two feet before the amp and use a splitter to connect the 4 guage to your amp. Also 8 guage ground will not work which is probably the main problem... use 4 guage or the maximum allowed which i think is 4ga. Running it like that may have also damaged it due to a ground that is not large enough.

 

[themainjam 10+ year member]

yeah running an amp with a smaller ground creates a bottleneck of power and creates alot of heat. it can end up burning amps..... learned from expereince.

 

[radel2dope 10+ year member]

Thanks for the insight guys. I guess I will be a little smarter next time.

 

[themainjam 10+ year member]

also if your still haveing problems check out KBaudio.com to get it fixed pretty cheap //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

my BX1500d will be there tommorrow //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif