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Premium Audio Settings

Was tinkering around with the settings and I couldn't get it to match what my Mark Levinson system sounded like in my previous Lexus. I feel something is a bit off with the stereo, but I can't quite put a finger to it. Maybe it is the surround sound? What are some of your audio equalizer settings?
FWIW, I measured frequency response at the driver position
in my "premium" M3, using a calibrated mic w/ the Audio Tool app,
and the stock settings are crowd-pleasers, but hardly flat. And
the "subwoofer" actually pumps mostly in the 60 Hz region.

Here are the settings of the "tone" faders for the flattest frequency
response compromise I've gotten so far, from Bass to Treble:

-3.0 +1.5 -1.0 0.0 0.0

I personally turn it a bit up on the treble-most fader, +1 to +1.5 instead of 0.
But don't overdo it, it's better to tune by subtracting or you will saturate the
circuitry and cause squashing and distortion.

If you want less of that 60 Hz bump, you'll have to sacrifice what little
there is in the 20-40 Hz region by pulling that first Bass fader down
even a bit more, like -4.5. But -3.0 is OK, it sounds pretty good on bass-
heavy EDM etc.
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