About MSGEQ7 with serial 0413 & 0408

Is there someone use IC MSGEQ7 with date code is 0413 & 0408 ?? It's run or not? Need help to decide buy it.

That looks like a generic picture; so what you buy might have a different date code than advertised :wink:

Why are you worried? Is there anything know about certain date codes not working for the MSGEQ7?