a different problem in my way as well..
i have bose , i'm sure , there is a subwoofer , amplifier
but something is still wrong , in the menu , there's digital EQ , loudness etc..
i cant make them disappear .. so i'm not sure the physical EQ at the boot distributes the right frequencies to the right tweeter or woofer etc.. or the digital EQ controls it ?
and also the tweeters i think , should play any bass (that bum bum bum style)
, they should only be played by the sub woofer , but when i adjust the bass level to 6 , it seems the tweeters are also affected by this , and try to play the bass sounds ..
it's a bit complex question , but i think here are more technically experienced people around