Question about Lightning Audio B2.300.2 Car Audio Amplifier

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B2.300.4 This amp stay in the protect mode. The red light is on and the green never comes on. I disconnected the speakers and still the same outcome. Any ideas? Thanks Dan

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  • mario1786 Oct 07, 2008

    my amplifier is a 4ch, does not want to turn on, only the protect light comes on. any ideas???

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  • Master
  • 631 Answers

It sounds like the amp has shorted output transistors. They would need to be replaced.

Posted on Jun 24, 2008

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When this stays red you have either a bad speaker or the amp has a blown channel. Those are the 2 most common problems with the protect light staying red.

Disconnect the speakers and if the amp turns on without speakers, you most likely have a bad speaker. Take them in to a service center and have them checked.

if you disconnect the speakers and it still stays red, you most likely have a bad channel in the amp.

There is nothing you can do with that except to take it in to be serviced.

Both of the possibilities are common problems with all car amplifiers.

Since you checked the wiring, there is really no other end user actions that can help you on this.

Sorry for the bad news, but if this information was of value to you a good rating would be appreciated and appropriate.

Let me know if you require any further help, I have been repairing car and home amplifiers for over 17 years and can help you on most questions

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