Specifications - REVELL ULTIMA SALON Manual

Ultima speak-
ers are avail-
able in the
body and side
panel finishes
shown below.*
The Embrace is
available in
Matte Black or
Matte White
finish.
Side Panel
Body
Finishes Finishes
High-Gloss Brushed
Aluminum
Black
High-Gloss Black Ash
Black
High-Gloss Aluminum
Gray**
Embrace body and grille colors
Matte Black Matte White
a
ULTIM

SPECIFICATIONS

Sensitivity
Sensitivity provides an indication of how much amplifier power is required for the speaker to
play at satisfactory volume levels. Conservatively-rated specifications indicate moderate
sensitivity and denote that REVEL speakers do not require huge amplifiers to achieve realis-
tic levels in all but the largest rooms.
Impedance
Impedance indicates whether the speaker system presents a "hard" or "easy" load on the
amplifier. A minimum impedance value of 3Ω, together with moderate phase angles, signi-
fies that most any amplifier can easily drive REVEL speakers.
Filters (crossover)
Steep filter slopes ensure good acoustical behavior in the crossover regions, with a mini-
mum of acoustical interference, along with low distortion and wide dynamic range. Revel fil-
ters feature point-to-point hand wiring with special selected components. Woofer and
tweeter filter boards are physically independent and include a provision for bi-amping or bi
wiring, while all models include rear panel compensation controls.
Frequency responses
In-room response is a breakthrough measurement that, in a single curve, closely correlates
to sound quality and has been a goal of speaker engineers for years. Research, and simple
observation, reveals that ubiquitous "on-axis" response curves often cannot distinguish
between two speakers with radically different sound quality. This specification for REVEL
speakers is even more powerful when it is taken in context with the other measurements
presented here.
A target response is the ideal response goal and is not flat at the frequency extremes and is
used when the ideal reference is not a "flat" line. A target response must be tailored to the
speaker's intended application and takes into account the acoustic impact of the speaker's
location, such as freestanding, or placement near a wall.
First reflections 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 speakers will remain accurate, even in the presence of strong reflections.
This improved "on-axis" measurement reduces the visual confusion of inaudible local inter-
ference, yet still retains full accuracy without using "spectral smoothing" which results in
significant data loss.
Studies have shown that the –10dB low frequency extension specification is the one that
best correlates to controlled listening tests. At low frequencies, most speaker/room combi-
nations exhibit significant "room gain," which is an increasing rise in level as frequencies
decrease. In addition, the –10dB specification reflects the steepness (i.e., order) of the low-
frequency roll-off, which is not significantly indicated in –3dB specifications.
* Cabinet and side panel finish representation is subject to the limitations of the full-color printing process. Actual cabinet finishes may vary.
**Heather Gray finish is available with Aluminum Side Panels only.
Finishes are subject to change.