the back of a receiver, integrated amplifier or power amplifier.
Midrange: The frequency span in the middle of the audio range, roughly 180Hz - 3000Hz. Also used to describe the driver that reproduces these frequencies.
Ohm: A unit of electrical resistance. That which opposes an electric current in a conductor. In audio, a measure of the load presented by a device to an electrical source.
nected as follows: (+) to (-) and (-) to (+).
Passive: Uses no electrical power.
Phase: An expression of the relative polarities of two sig- nals.
Power Handling: The ability of a loudspeaker to operate without large increases in distortion when given varying amounts of input power.
Preamplifier: An electronic device that selects sources and passes
Satellite: Front L & R speakers when used with a sub- woofer. Also referred to as "main speakers". Sensitivity: A ratio of voltage across the speaker load to the acoustic power output, measured in decibels.
Sub Out: An line level output for connection to a sub- woofer or subwoofer signal processor.
Subwoofer: A driver designed to operate over the low bass portion of the audio range. Also refers to a system consisting of a woofer and its enclosure, which are phys- ically separate from the upper range loudspeakers.
Surround Speakers: Speakers located in the side or rear for surround channel effects.
Treble: The upper part of the frequency spectrum, con- sisting of frequencies above about 3000Hz.
Tweeter: A small driver designed to reproduce high fre- quencies.
Watt: A measure of electrical power, combining the volt- age with the electrical current required to drive the loud- speaker.
Weight: Low frequencies below 50Hz.
Woofer: A driver designed to operate over the bass por- tion of the audio range.
