In the user manual and in the data sheet on the page of this product on the site - exactly the opposite information about the input impedance. The website says 1mOhm - which means you can plug things like a passive piezo into the AUX input. The user manual indicates a completely different figure - only 11 kOhm, stating that only active pickups will do.
Which number to trust? I tried to connect passive piezos to the mix, the signal from them is very weak.
