The Line 6 box is a guitar amp modeler.
Guitar amps distort way too easily with electric pianos. That includes modelers. So yes, as you bring up the volume on the piano the Line 6 is going to get fuzzy. Exactly what it supposed to do.
The pickups on Rhodes pianos are very sensitive to loading. If the input impedance of anything you plug a Rhodes into is not high enough, the pickups become noisy. That's likely the case with the Line 6.
Years ago I tried my Rhodes into my Vox Tonelab SE amp modeler and found the same problem. Not a good pairing.
Guitar amps distort way too easily with electric pianos. That includes modelers. So yes, as you bring up the volume on the piano the Line 6 is going to get fuzzy. Exactly what it supposed to do.
The pickups on Rhodes pianos are very sensitive to loading. If the input impedance of anything you plug a Rhodes into is not high enough, the pickups become noisy. That's likely the case with the Line 6.
Years ago I tried my Rhodes into my Vox Tonelab SE amp modeler and found the same problem. Not a good pairing.