In reply to:


I know there is an issue with the riocar line level output (4v) and the monsoon input (12v).



I'm not trying to sound pendantic but I don't think there is any amp that uses a 12V input.. Most Car audio applications use 12v power.. (ie from the battery)... I think you should rethink your question and perhaps check the FAQ at riocar.org.

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Reg #2845: Mark 1 #00173, Mark 2 #119, Mark 2a