Yep… tested on my BK9, same thing. No need for a reset, it won’t help.

Here’s something I found out, though. As long as you don’t use negative values for any of the EQ settings, the values remain where you program them. Obviously some kind of bitset value has been got wrong. It applies to bass and mid values too. So, okay, you may not be able to set a negative value, but you aren’t stuck with that +5 value on the highs!

See if Bass 5 and a lower Mid (maybe 2) and High at 0 will suffice…