Abstract: Disclosed is a device for introducing loudspeaker harmonic nonlinearities to a signal without outputting the signal as audio or sound through a loudspeaker and recording the output audio or sound. The device includes a resistive element and an inductive element. The resistive element includes a hollow core and a first wire wound around the hollow core in a first direction. The inductive element is inserted within the hollow core of the resistive element, and includes a metal-based core and a second wire wound around the metal-based core in an opposite second direction. A signal or current is first passed through the inductive element, creating electromagnetic distortion between the resistive element and the inductive element that simulates inductance of the loudspeaker voice-coil. The electromagnetic distortion alters the signal by introducing harmonic nonlinearities into the signal.

Abstract: Disclosed is a device for introducing loudspeaker harmonic nonlinearities to a signal without outputting the signal as audio or sound through a loudspeaker and recording the output audio or sound. The device includes a resistive element and an inductive element. The resistive element includes a hollow core and a first wire wound around the hollow core in a first direction. The inductive element is inserted within the hollow core of the resistive element, and includes a metal-based core and a second wire wound around the metal-based core in an opposite second direction. A signal or current is first passed through the inductive element, creating electromagnetic distortion between the resistive element and the inductive element that simulates inductance of the loudspeaker voice-coil. The electromagnetic distortion alters the signal by introducing harmonic nonlinearities into the signal.

Abstract: Provided is a machine head adapter for mounting a machine head, that is misaligned with an existing mounting hole on an instrument, to the instrument. The adapter may include a solid rigid body with a base section of a first thickness, a mounting point extending the base section, a support extension of a second thickness, and a set screw. The support extension extends laterally from an upper part of the base section such that a bottom of the support extension is elevated over a bottom of the base section by a difference between the first thickness and the second thickness. The set screw is positioned about a length of the support extension, and adjustably extends below the bottom of the support extension to the bottom of the base section. The adapter includes a screw for screwing into the existing mounting hole via an opening at the mounting point.