Question about Phonic MAX 2500 Amplifier

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Phonic Max2500 Can't turn my amp on, in 2 seconds it shuts down what may be the problem? Its not the internal fuse and i didnt try the max of the amp.... Thanks and sorry my english

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  • rogerxaxis Mar 10, 2008

    Yes with the speakers disconnected or connected... I don't know what to do...


  • Graeme Ross
    Graeme Ross May 11, 2010

    Hey Roger

    Does this happen with the speakers disconnected?



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Hi Roger...This amp has a circuit that protects it a number of ways: short circuit, thermal, subsonic, RF protection, and output DC offset. Unfortunately, the symptoms you have, with speakers disconnected indicate that the amp has a failed output stage producing a DC offset, and the protection circuit is operating to protect you speakers from damage. If the amp is still under warranty to Phonic. go here if you are unsure about your warranty, and log a fault with Phonic(I am assuming you are in the US of A)

Other than that, I am afraid you will need to take it to a Phonic agent for repair, as voltages and circuitry used in the model are not suitable for unqualified personnel to repair. Good luck Thanks for using FixYa


Posted on Mar 11, 2008

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You have real problem in safety contol circuit which shut down the unit to protect the amplifier from damage

Posted on Mar 10, 2008

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    Phonic Max 2500 blocked/protected

    the problem of shuting down of amp. is some of output driver are shorted or open check the output driver and predriver

    Mar 11, 2008 | Phonic MAX 2500 Amplifier

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