Sony mgongo 1000 watt 4.2ch problem usb fail on display

Question edited heavily for clarity.
Question moved from Office Equipment.

Here is your fix
https://us.community.sony.com/s/question/0D50B00004IL1K5SAL/how-to-handle-a-usb-fail-message-from-a-strkm3-that-has-no-usb-port?language=en_US

https://www.google.com/search?q=Sony+STR-KM2+error+USB+Fail

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Check the back for a fuse?

Take it to a Sony Service Centre.

Hi my Sony mgongo amplifier says usb protect why ??

a sony 1000 watt rating is an exagerration. you will blow your 1200 watt speakers far before reaching sonys claim of 1000 watts

If you are asking if you can have a kenwood amp hooked up to your Sony Head unit then yes it would be compatable.

crack the windows and drop the sony bull **** and get your self a nice mono block class d amp 1000 rms should be loud enough btw bild your stereo based on rms power not max power rms is the true power you got so like 2 500 watt rms 12s on a 1000 watt rms amp or just a 1000 watt woofer it will be jsut as loud as the 2 12s

hey i have a sony explod 1000 watt amp from walmart! um and i have a mofo 152 3000 watt sub how would i wire it!

how do you have your system hooked? What speakers do you have? There is a lot more too it then just wattage.