Ampere Audio AA-7500.1

Hello, I was wondering if anyone could tell me what the current draw at idle is for the Ampure Audio AA-7500.1? The power supply alone, without the output section attached is drawing around 4 amps give or take. With the output section connected it’s up around 8. It’s producing audio but that’s pretty excessive right? Another quick question, are the fans supposed to start up immediately or do they only run when the amp is hot? I apologize if my questions are dumb. Any input would be greatly appreciated.