Loud Hum from set up using F1 812 powered speaker
I must firstly say that the Bose F1 812 speaker sound is Fantastic.
I use a Tone match T1 mixer with F1 812 speaker and iPad for Backing tracks. When I first received the speaker plugged everything in absolute perfect sound. Now after 4 or 5 gigs using the same set up (photos attached) It has now developed an annoying humming sound.
To try and trace the problem I firstly disconnected the T1. With the master imput volume down to zero and the iPad plugged into the back of the speaker volume knob half way no hum. Reset every thing back to the original setting (changing all of the leads) . Back to a loud hum.
Can anyone help its driving me crazy as when I first used this set up no hum !!!