Can Amplifiers Lose Output As They Age?

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jamesrundles

Member - Posts: 11

Joined: March 17, 2019

Location: Oklahoma, United States

Posted: July 03, 2019 at 7:07 AM / IP Logged

I have heard it is possible over time for an amp to loose its output power gradually over time. I never believed this to be true however I have had the same amp and same subs and same box for 9 years and it has been in 5 different vehicles. I realize each vehicle will acoustically sound different but this latest vehicle is different. 2004 mitsubishi endeavor. Run the amp from a line level converter and was sounding great plenty of bass. Switched the head from stock to aftrtmarket with dedicated sub output and eq controlls and the sub is different. Seems like the output is weaker. With all the back story the question is is it possible for an amp to loose output due to age.

James

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geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: July 07, 2019 at 7:22 PM / IP Logged

It's definitely possible, but since you changed the headunit, you should go back through the amp setup procedure. It's likely you need to adjust your gain.

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jamesrundles

Member - Posts: 11

Joined: March 17, 2019

Location: Oklahoma, United States

Posted: August 02, 2019 at 12:20 PM / IP Logged

On this issue while the output seems to be lower I found my rca cable was shorted on one channel and was making the other play weird. Reaced that and it is good again

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DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: August 04, 2019 at 12:45 PM / IP Logged

Capacitors change with time which can cause amplifiers to lose both bass output and overall power output capability. If you think this has happened to your amp, the best thing to do is to consider replacing it - unless it is a very high quality amp like a McIntosh or something that would be worth having repaired.

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timbo74

Member - Posts: 3

Joined: August 29, 2019

Location: Wisconsin, United States

Posted: August 29, 2019 at 8:02 PM / IP Logged

It’s called degradation, most electronic devices are subject to it.

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