Glossary

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E-M

The amount of movement a speaker cone is capable of.

EBP

The efficiency bandwidth product. (Fs/Qes)

Edgewound Ribbon Voice Coil

A practice pioneered by JBL where wire is flattened into a metal ribbon and then wrapped on edge to form a voice coil. This allows for the greatest amount of wire to be located in the gap, increasing performance.

Efficiency

The measure of an amplifier or speaker's ability to convert input power to work. Expressed as a percentage.

Electrolytic Capacitor

The most common form of capacitor consisting of a conductive film in an electrolyte. These are canister-shaped and come in the widest range of values. Stiffening caps are electrolytics.

Excursion

The amount of movement a speaker cone is capable of.

Extended Pole Piece

A design innovation that allows for increased excursion while decreasing distortion by operating the voice coil over a longer throw.