Hi,
I just bought my new PA1X a month ago/ I have a few queries. Firstly, can the EQ of the overall board be adjusted in any way (Bass and Treble) and also, when I play some bass notes there is a slight jarring noise from the left speaker. Is this normal? I feel its because of the deep bass notes that the speakers might be vibrating.

Thanks,
SUNNY

http://www.korgforums.com/forum/phpBB2/

click on the link above. It will take you to the korg forum and somoeone more experienced should be able to handle your enquiry. Certainly the speakers should not be jarring at all.There is a limiter built into the speakers to prevent you from blowing them. However there might be debris that has fallen into the speaker or under the keys of the keyboard into the instrument that might be vibarting when you play deep notes