Hi,
I also have, that some (STYLE) files have overwhelming bass. Then I adjust the volume of the bass in a given file (STYLE, MIDI).
In my opinion, you must first decide on the GAIN volume of the subwoofer in the MEQ section (according to the internal files of the instrument. External files may sound differently).
If this is the recommended Yamaha subwoofer, I would choose the appropriate setting in the MEQ (With Subwoofer) section.
Then correct the bass volume in some of these files.
The easiest way after correcting STYLE files is to register with the register button. Then the bass sounds the same in all variations of style.
As for MIDI files, I tried to do it in the MIXING CONSOLE (SONG CH 9-16) window. This attempt failed.
I did it at SONG CREATOR.
First, I chose the file to be processed and saved with the changed name (so as not to lose the file.)
I opened the SONG window with the SELECT button and selected this file.
Then I opened the MIXING CONSOLE (SONG CH 9-16) window - with the middle button on the side of the screen: PART / MIXER EQ and PART / CHANNEL ON-OFF. This second button allows you to locate the bass (ON / OFF). In my files bass is saved in channel 11.
I adjusted the bass volume.
Then I opened the SONG CREATOR window - CHANNEL tab.
In the SOURCE 1 column I chose channel 11.
I pressed SAVE on the right side of the screen.
Then I saved the changed file in the USER tab. (or on UB)
The bass file has been muted in the new file.
The instrument's internal files should be played correctly with the standard setting for the recommended subwoofer. However, files from outside may need to be corrected.
It seems that, unfortunately, these are the consequences of using a subwoofer. Files recorded with different MEQ settings sound different with the subwoofer.
Maybe someone will correct me or find another way.
Regards