I love the S1's! I *do* note some tracks distorting. I am sure they can fix this with a firmware update and not making the speaker sound less powerful. Perhaps it is a certain frequency that needs to be turned down? Don't cripple the speaker Bose, just fix the issue.
To the best of my knowledge, there are *No* apps for iPad that will EQ for across the board. The EQs you see in the app store are actual players and you have to use their app to use the EQ. Won't work for me. I use DJAY Pro for iPad. Pro DJ program. I can eq each deck but not the Master. This also applies for the EQ built into the iPad settings, that EQ only works for the MUSIC app built into the iPad.
I wish the S1's had auto re- pairing when turning them back on