Hi guys... I was bored, so did this:
DJM-300 Frequency Response. It shows you the effect of the different EQ ranges out on the output of the mixer. This will be interesting to compare values to when I upgrade to a newer model

Here's the standard frequency response I got from the unit:


And for example, here's the response when when MID EQ is at 3 o'clock and the HI EQ is at -26dB:


Check out the page if you are interested Oh and if anyone wants to give me a DJM-800 so I can test on that too, feel free