The post directly above yours that brought this thread back was that from the manufacturer comes this...
"Thank you for contacting us and we hope you are doing well. The mentioned data specification of the power module is 2.7 Ohm of minimum load which has been rounded up"
Being able to understand that the rating printed on the amp is a rounded number is hardly the same thing as a ignoring the maximum weight on a hoist by 50%. You're focusing on the number to the exclusion of any other information.
This is more like someone with your 2000 lbs maximum hoist wanting to lift 2000 lbs 1 oz, contacting the hoist manufacturer, and being told, "The 2000 lbs maximum is a safe and approximate, round number. The actual physical limit is hundreds of pounds more, so you can certainly use our hoist EVEN THOUGH the label says 2000 lbs maximum."
In that scenario, would you say, "I don't try to lift 2000 pounds and 1 ounce with a hoist labeled 2000 lbs maximum."?