Crosstalk between inputs possible?

Recently i routed my modular through Input-A. It was a very hot signal, loud and distorted … so reduced the input-volume but before this i noticed that the LED on Input-C also lightened up when a signal on A was going through

i have no idea how this happened … has someone the same experience

Does monitoring the C input with THRU give audio signal?

Yes, inputs can bleed.

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Was bashing my head forever trying to figure out why my recordings were so slow and even after normalizing so noisy. Turned out I was hitting the record button for the wrong input (derp). Anyway goes to show that, yes, there is indeed crosstalk.

I find that a bit bizarre with a digital mixer like on the OT. The analog frontend not being up to nuff?

Analog inputs are close.

Most likely its a suboptimal engineering decision wrt analog frontend design. But I am guessing the crosstalk is small enough that it does not bother one that much in practice.

The more I learn about audio equipment engineering, the more obvious it becomes that not all gear is created equally… Circuit design is very difficult.

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I found something similar to that on my A4 when modulation is fast and intense affecting other parameters than without affecting them directly. And this effect is not a consequence of the intended sounddesign soundwise. Seems to be really a consequence of the circuit-design.