I've put together a Pepper module, and listening to the stereo output attenuated via a potentiometer. Sound great, doesn't seem to hot, but hesitant to plug my headphones in directly. I got confused by the docs: is the stereo output (i.e. the things marked L and R on the output side) still at audio line level? Or is it likely to be up to 10V? I'm powering the Bela with the standard +/- 12V eurorack power.