Ok, here's the latest update
I pulled all the new transistors and the old ones then powered up the amp.
Result - no protection light, no fizzing noise from the transformer and no inline fuses blowing.
Next i took 2 good pairs of transistors from the previously good channel and re-installed a pair on the left channel and a pair on the right.
Powered it back up and I now have clean audio in both channels with none of the previous problems.
I think Perry was correct and my new transistors were fake,
I have since contacted Kicker direct and their tech department confirmed the output devices are still available so I'll be ordering all 24 to be on the safe side.
I pulled all the new transistors and the old ones then powered up the amp.
Result - no protection light, no fizzing noise from the transformer and no inline fuses blowing.
Next i took 2 good pairs of transistors from the previously good channel and re-installed a pair on the left channel and a pair on the right.
Powered it back up and I now have clean audio in both channels with none of the previous problems.
I think Perry was correct and my new transistors were fake,
I have since contacted Kicker direct and their tech department confirmed the output devices are still available so I'll be ordering all 24 to be on the safe side.
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