I currently have a QU16. The keyboards synthesizer are connected to the mixer by unbalanced jack. I’d like the new SQ-6 but there is not unbalanced jack input. How can I connect the Synth-keyborads with unbalanced jack to the mixer ?
Use a DI Box in between the keyboard and the mixer. From the DI Box you have a balanced signal to the desk.
If you use an unbalanced jack cable (or two) to connect your keyboard, and you are near the mixer, you can just plugin to the jack inputs on the back of the SQ-6.
I own a SQ-5 and it has 2 stereo (or 4 mono) jack inputs on the back of the mixer.
Otherwise, just use a DI-box. RadialEngineering is my favourite (not a shareholder 
)
I may strecthing a bit here but isn’t the jack (TRS) on the QU balanced even if they are
not XLR, so using unbalanced jack-XLR cable would be the same as you are doing on QU now
or have I missunderstood something. Or do you use the ST1 and ST2 for your synths?
Thankyou very much for the support