Amp level setting

I'm new on the forum but I can jump in on this. Some amps label the gain this way, it's referring to the expected preamp voltage. If RCA voltage is 5V, you'll obviously need less gain than a 2V signal. It's probably a better way to label the gain, in my opinion, because it more accurately describes what it's actual purpose is.

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yeah it's fine just set like normal, use 50hz tone with meter set volts to watts u want (make sure amp does watts u set it for fyi mb quart does not even come close to doing ratings., look at the crunch 1500.1 that tested 323rms 2 days ago.. made by same company)