Abstract: Pedal assemblies and methods provide for signal control, such as for controlling audio and/or effects path signals used in generating audio from a musical instrument. The pedal assemblies may provide for simultaneous audio and effects control via electrical pathways dedicated to each. Rotation of the pedal about one or more axes of rotation results in modifying an electrical characteristic of devices of the pedal that control the audio and effects path signals. A particular axis of rotation that modifies the electrical characteristic of a device may be configured to produce a particular audio or effects path control based on which of the jacks are in use such that by changing the jacks that are in use, the function of a particular axis of rotation may change. Furthermore, a pedal assembly may provide for two axes of rotation where the centers of rotation of the two axes are non-coincident. The two axes of rotation may be better isolated as a result.

Abstract: An impedance selection circuit for the connection of multiple circuit braches is disclosed. The connection is supplied with the use of three switching jacks and connects directly to the branches through two jacks, or combines the branches in parallel or series to output to one jack. This circuit design comprises a low impedance jack 1, a middle impedance jack 2, and a high impedance jack 3. These jacks will connect to the multiple circuit branches individually, in series, or in parallel. In an example of using the impedance selection circuit, the user can implement the circuit to connect an amplifier to a multi-speaker array at three different impedances. The low impedance jack 1 yields a connection at a smallest fraction of the individual speakers' impedance. The middle impedance jack 2 yields a connection at a larger fraction such as one half the individual speakers' impedance. The high impedance jack 3 yields a connection at a higher impedance such as the same impedance as each individual speaker.