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Glossary of Terms

   Anamorphic

Process that condenses the image in the source material to be expanded by the display device. With DVD, the anamorphic recording preserves a vertical detail that would otherwise be lost on a widescreen film that is cropped, or letterboxed, to fit the 4:3 reading image space.

   Ohm

A measure of how much something resists (impedes) the flow of electricity. Larger numbers mean more resistance.

   Preamplifier

A control and switching component that may include equalization functions. The preamp comes in the signal chain before the amplifiers.

   Spider

The part of the loudspeaker that holds the diaphragm in place, and allows it to move when activated. Also called suspension.

   Woofer

A speaker driver designed to reproduce low frequencies.