Capacitance
The ability of conductors, separated by dielectrics, to store electrostatic charges. Interconnect cables should have capacitance figures of 24 pF or below. High capacitance cables produce sound which is rolled off - soft with a dulling of transients,
Impedance
A measure of the complex resistive and reactive attributes of a component in an alternating-current (AC) circuit. Impedance is what restricts current flow in an AC electrical circuit; impedance is not relevant to DC circuits. In DC circuits, resistors limit current flow (because of their resistance). In AC circuits, inductors and capacitors similarly limit the AC current flow, but this is now because of their inductive or capacitive reactance. Impedance is like resistance but it is more. Impedance is the sum of a circuit, or device's resistance AND reactance. Reactance is measured in ohms (like resistance and impedance) but is frequency-dependant. Think of impedance as the complete or total current limiting ohms of the circuit -- the whole banana. Since AC circuits involve phase shift -- i.e., the voltage and current are rarely in phase due to the storage effects (think "time;" it takes time to charge and discharge) of capacitors and inductors, the reactance is termed "complex," that is there is a "real" part (resistive) and an "imaginary" part (bad terminology, but it means the phase shifting resistance part). To summarize: resistance has no phase shift; reactance (capacitors & inductors in AC circuits) includes phase shift; and impedance, is the sum of resistance and reactance. Just that simple.
Inductance
Inductance in a wire (self inductance) is a measure of the result of current flow creating an electromagnetic field around the wire. As this is an alternating field, it induces voltage back into the wire, opposing current flow. Due to “skin effect” this become negligible at high frequencies. RSC™ is shaped to reduce the effects of inductance at all frequencies
Heterodyning
An effect caused by intermodulation of two or more signals, where additive and subtractive tones, known as beat frequencies, are created. For example, mixing two frequencies of 100 KHz and 1 KHz results in the following frequencies being created:
100 KHz
1 KHz
101 KHz
99 KHz
Intermodulation
Interaction between two or more spontaneously produced signals. A situation to be avoided in audio or video signal transmission, as it generally results in some type of distortion