Revel Salon - Manual (Page 21)

SPECIFICATIONS
Revel utilizes proprietary measurement methods in the design and
specification of our loudspeakers. Our research has developed a
series of tests that represent a great leap forward in making mea-
surements that dramatically contribute to our goal of accurately
reproducing music or film.
Sensitivity: 87 dB SPL, with 2.83 Vrms @ 1 m
(4 pi anechoic)
Sensitivity provides an indication of how much amplifier power is
required for the loudspeaker to play at satisfactory volume levels.
This conservatively-rated specification indicates moderate sensitivity
and denotes that REVEL ULTIMA STUDIO does not require huge
amplifiers to achieve realistic levels in all but the largest rooms.
Impedance: 6 ohms (nominal), 3 ohms (minimum)
Impedance indicates whether the speaker system presents a
“hard” or “easy” load on the amplifier. A minimum impedance
value of 3 ohms, together with moderate phase angles, signifies
that any competently-designed amplifier can easily drive REVEL
ULTIMA STUDIO.
Filters (Crossover): 3-way, 24 dB per octave, (4th-order) acoustic
response at 220 Hz and 2.2 kHz
The steep filter slopes ensure good acoustical behavior in the
crossover regions, with a minimum of acoustical interference, along
with low distortion and wide dynamic range. The filters feature
point-to-point hand wiring with specially selected components.
Woofer and tweeter filter boards are physically independent and
include a provision for bi-amping or bi-wiring.
Frequency Responses: In-Room Response;
+ 1 dB from 31 Hz to 12 kHz
In-room response is a breakthrough measurement that, in a single
curve, closely correlates to sound quality and has been a goal of
loudspeaker engineers for years. Research, and simple observation,
reveals that ubiquitous “on-axis” response curves often cannot distin-
guish between two loudspeakers with radically different sound quali-
ty. This REVEL ULTIMA STUDIO specification is even more
powerful when it is taken in context with the other measurements
presented here.
In-Room Response Relative to Target Response;
+ 0.75 dB from 31 Hz to 12 kHz
A target response is the ideal response goal and is not flat at the fre-
quency extremes and is used when the ideal reference is not a “flat”
line. A target response must be tailored to the loudspeaker’s intended
application and takes into account the acoustic impact of the loud-
speaker’s location, such as freestanding, or placement near a wall.
First-Reflections Response;
+ 1 dB from 31 Hz to 12 kHz
First reflection response is a measure of the response a listener
hears that is contributed by the first reflections from the walls,
floor, and ceiling. This superb specification indicates that REVEL
ULTIMA STUDIO will remain accurate, even in the presence of
strong reflections.
Continued on the next page...
REVEL ULTIMA STUDIO
Owner’s Manual
21