I have an Audiopipe ap 1800.1d. When I received it, someone had already attempted repairs to it. The power fets and gate resistors were bad so I replaced them. I pulled the outputs out and the amp powered on fine. Some of the outputs were missing when I got the amp, so I replaced all the outputs; however the amp goes in to protect when power is applied now. I beleive the output drivers are bad but can not find what part number I need to order. Thanks
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