NHT Evolution System - Manual (Page 51)

in decibels.
Sub Out: An line level output for connection to
a subwoofer 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 physically 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 spec-
trum, consisting of frequencies above about
1300Hz.
Tweeter: A small driver designed to reproduce
high frequencies.
Watt: A measure of electrical power, combining
the voltage with the electrical current required to
drive the loudspeaker.
Weight: Low frequencies below 50Hz.
Woofer: A driver designed to operate over the
bass portion of the audio range.