Revel F12 - Manual (Page 18)

Definition Value Specification
18
Sensitivity
Impedance
90.5dB SPL with 2.83V @
1m (2 pi anechoic)
6 Ω (nominal), 3.7Ω (min-
imum @ 188Hz)
Indicates the amount of power the associated power ampli-
fier must deliver to drive the loudspeaker at reasonable vol-
ume levels. Conservatively-rated specifications indicate
moderate sensitivity, meaning that a massive power ampli-
fier is not required to drive Revel loudspeakers to reason-
able volume levels in large listening spaces.
Indicates whether the loudspeaker presents a “difficult” or
“easy” load on the associated power amplifier. Combined
with moderate phase angles, a minimal impedance
specification of 3.7
Ω allows a reasonably designed power
amplifier to drive Revel loudspeakers.
In-Room Response ±1.5dB from 55Hz to
15kHz Indicates sound quality in context with other specifications.
A breakthrough measurement, this specification closely
correlates to sound quality in a single curve – a long-standing
goal of loudspeaker engineers.
In-room response is measured through the use of large
anechoic chambers. The speaker’s response is measured
every 10 degrees horizontally and vertically for a total of
72 response measurements.
The in-room response curve is a prediction of how the
speaker would measure in a typical room. Research and
observation reveals that ubiquitous “on-axis” response
curves cannot distinguish between two loudspeakers with
radically different sound qualities.
Low-Frequency
Extension
Specifications are subject to change without notice.
-10dB @ 28Hz, -6dB @
40Hz, -3dB @ 52Hz
Indicates the low-frequency response of the loudspeaker.
Studies have shown that the –10dB specification best
correlates to controlled listening tests. At low frequencies,
most loudspeaker and listening room combinations
demonstrate significant “ room gain,” which produces an
increase in levels as frequencies decrease. Unlike the –3dB
specification, the –10dB specification reflects the steepness
of low-frequency roll-offs.
Filter Network Three-way, high-order @
575Hz and 3.0kHz Indicates the acoustical characteristics of the filter network.
Steep filters indicate an optimized filter network that
produces minimal acoustical interference, low distortion,
and expansive dynamic range.
Height 42.28 inches (107.39cm) (including feet)
Depth 14.27 inches (36.25cm) (including grille)
Weight 62.60 pounds (28.39kg) (including grille)
SPECIFICATIONS
18
Width 9.75 inches (24.77cm)
REVEL Concerta F12
Owner’s Manual