What does "Low Impeadence" on my amp mean?

Hit Man X · 09-22-2001, 09:56 PM

Like when my amp powers up, the Power light comes on, then the Low Imp light and that's it.
Got an idea what the hell is wrong?

jbullerjr · 09-22-2001, 11:20 PM

Your amp is trying to tell you that the load (impedance) is too low.
What subs do you have connected to the amp? What is their impedance (4 ohm, 8 ohm dual voice coil, etc...)? How do you have them wired? Parallel or Series?

James

Hit Man X · 09-22-2001, 11:24 PM

The amp is running my coax speakers. They are just 4OHM speakers, in a 4OHM load.
I figured it was a power problem, since my volt meter said about 8.5v at the connector.

jbullerjr · 09-22-2001, 11:35 PM

If you are just running a pair of 4 ohm speakers at a 4 ohm load then maybe you are having a voltage problem. You should be getting at least 11.5 + volts at your amp.

James

FunFordCobra · 09-23-2001, 11:22 AM

make sure you didnt bridge the 4 ohm speakers together because that would be a 2 ohm load on the amp and if the amp isnt 2 ohm stable then boom-bitch! It seems that you have a power problem though. Like homeboy said, yopu should have at least 11v at the back. It could be a ground or power wire problem.
Ex: The power wire has been stripped a little and is toutching the frame. And vice versa for the ground.

Hit Man X · 09-23-2001, 12:32 PM

Yeah I am pretty sure it is power. I got 8.5v with- Key On, Engine Off-after the cap. I am beginning to think the cap may be bad...

FunFordCobra · 09-24-2001, 08:21 AM

Even if the cap is bad you should have more than 8 v.

09-22-2001, 09:56 PM	#1
Hit Man X Out with your mom Join Date: Feb 2001 Location: Mansfield, Texas, USA Posts: 2,508	What does "Low Impeadence" on my amp mean? Like when my amp powers up, the Power light comes on, then the Low Imp light and that's it. Got an idea what the hell is wrong? __________________ Living, the only thing worth dying for. "It is not what he has which directly expresses the worth of a man, but what he is."- Henri Frederic Amiel '88 F150, '01 Z71, '85 BMW 745i Turbo, '79 280S Benz, '85 300SD Benz, '86 420SEL Benz, '87 300SDL Benz (severely in need of updating, around 14 vehicle current) I have red hair

09-22-2001, 11:24 PM	#3
Hit Man X Out with your mom Join Date: Feb 2001 Location: Mansfield, Texas, USA Posts: 2,508	The amp is running my coax speakers. They are just 4OHM speakers, in a 4OHM load. I figured it was a power problem, since my volt meter said about 8.5v at the connector. __________________ Living, the only thing worth dying for. "It is not what he has which directly expresses the worth of a man, but what he is."- Henri Frederic Amiel '88 F150, '01 Z71, '85 BMW 745i Turbo, '79 280S Benz, '85 300SD Benz, '86 420SEL Benz, '87 300SDL Benz (severely in need of updating, around 14 vehicle current) I have red hair

09-23-2001, 12:32 PM	#6
Hit Man X Out with your mom Join Date: Feb 2001 Location: Mansfield, Texas, USA Posts: 2,508	Yeah I am pretty sure it is power. I got 8.5v with- Key On, Engine Off-after the cap. I am beginning to think the cap may be bad... __________________ Living, the only thing worth dying for. "It is not what he has which directly expresses the worth of a man, but what he is."- Henri Frederic Amiel '88 F150, '01 Z71, '85 BMW 745i Turbo, '79 280S Benz, '85 300SD Benz, '86 420SEL Benz, '87 300SDL Benz (severely in need of updating, around 14 vehicle current) I have red hair

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09-22-2001, 11:20 PM	#2
jbullerjr Hired Hand Join Date: Jan 2001 Location: arlington,tx Posts: 801	Your amp is trying to tell you that the load (impedance) is too low. What subs do you have connected to the amp? What is their impedance (4 ohm, 8 ohm dual voice coil, etc...)? How do you have them wired? Parallel or Series? James

09-22-2001, 11:35 PM	#4
jbullerjr Hired Hand Join Date: Jan 2001 Location: arlington,tx Posts: 801	If you are just running a pair of 4 ohm speakers at a 4 ohm load then maybe you are having a voltage problem. You should be getting at least 11.5 + volts at your amp. James

09-23-2001, 11:22 AM	#5
FunFordCobra Dead Join Date: Jul 2001 Location: Cybertron Posts: 5,289	make sure you didnt bridge the 4 ohm speakers together because that would be a 2 ohm load on the amp and if the amp isnt 2 ohm stable then boom-bitch! It seems that you have a power problem though. Like homeboy said, yopu should have at least 11v at the back. It could be a ground or power wire problem. Ex: The power wire has been stripped a little and is toutching the frame. And vice versa for the ground.

09-24-2001, 08:21 AM	#7
FunFordCobra Dead Join Date: Jul 2001 Location: Cybertron Posts: 5,289	Even if the cap is bad you should have more than 8 v.