A cable connector having an outer tube, a first inner tube, a metal ring, a second inner tube and a grip portion is provided. The signal processor includes fast acting level estimators and slow acting level estimators. In an audio encoding application, the distortion thresholds are based on psychoacoustic masking. A decision on compatibility is made on the basis of the discrepancies. The section is connected downstream of the interface and is disposed at least partially externally on the upper body. The winder comprises a drive, a winding mandrel and at least two winding rolls.