REVELL Concerta C12 User manual

Owning Revel loudspeakers
is a pleasurable experience for
both the ears and eyes.
Learning about the finer details
of their design and construction
will deepen your appreciation of
their lasting value.
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From the company that produces “The World’s Best
Loudspeakers,” Revel introduces the Concerta series, a family of
loudspeakers that sets the standard for acoustical accuracy com-
bined with impressive value. Borne of the technique and technolo-
gy of Revel’s Ultima and Performa loudspeakers, Concerta has
been developed with the same stringent attention to musical hon-
esty and manufacturing precision that are Revel hallmarks. All
Concerta models are designed to work together harmoniously,
whether for a two-channel music system or a multichannel music
and home theater surround system.
THE LISTENING LAB
Revel makes the most exhaustive measurements of loudspeaker
performance in the industry. We have developed measurements
that areunique in their ability to meaningfully portray sound quali-
ty.However,Revel knows that the final authority for loudspeaker
accuracy must be the listener’s satisfaction. That is why we not
only measureour loudspeakers carefully,but moreimportantly,we
listen to them exhaustively in our unique and proprietary Multi-
channel Listening Lab (MLL). This remarkable listening environ-
ment is equipped with numerous pneumatically-positioned
loudspeaker mounting platforms.
Two loudspeakers, even of identical make and model, will sound
different according to their particular placement within any given
room. During the listening process, the loudspeaker samples being
compared arequickly repositioned via moving platforms so that
the placement within the room is identical for each, which allows
the listener to moreclearly evaluate each speaker’sperformance,
and not be influenced by its position in the room.
To further improve the auditory scoring accuracy, the loudspeakers
being compared are visually obscured by an acoustically transpar-
ent but optically opaque scrim. No one in the room is ever awareof
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which loudspeaker is playing, as the MLL computer controlled sys-
tem randomly decides which speaker is selected. This double-blind
listening and scoring system completely removes visual and brand-
related bias from the listening process, ensuring that the listeners
only evaluate and score based upon what they actually hear, and
nothing else.
This guarantees that any given Revel loudspeaker is honestly com-
pared – to other Revel models and to competitors’ offerings, and is
unique in the industry.
UNIQUE DESIGN TECHNOLOGIES
Revel engineers have access to the broad array of Harman
International’s loudspeaker design and development technologies.
ALaser Interferometer measurement system is used to rapidly scan
adriver’sdiaphragm even when it is operating at extremely high
frequencies, providing a visual confirmation that the radiating sur-
face remains pistonic and does not exhibit signs of breakup. The
laser interferometer is also used during speaker cabinet develop-
ment, to ensurethat the cabinet remains acoustically inert and
does not radiate unwanted acoustic energy.
Our in-house stereo lithography system allows the engineers to
create prototype mechanical parts directly from our computer
aided design programs in a matter of hours, shaving weeks and
months off the driver development process. We also have three
separate anechoic chambers, whereas most speaker companies
have none.
EXCLUSIVE DRIVERS
The Concerta loudspeaker drivers feature our exclusive Organic
Ceramic Composite (OCC) cone and dome technologies, which
offer the ideal combination of low mass and high rigidity. This
ensures that the diaphragm remains pistonic over the entireoper-
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ating frequency range, reducing distortion to vanishingly low lev-
els. Concerta tweeters feature under-hung voice coils, Ferrofluid®
magnetic damping fluid and advanced neodymium motor sys-
tems, all contributing to optimized performance. These sophisticat-
ed tweeters are designed around our proprietary Constant
Acoustic Impedance (CAI) waveguide technology, which provides
ideal acoustic loading over the tweeter’s operating frequency
range along with increased efficiency and optimized dispersion.
Concerta midrange and woofer drivers feature oversize magnetic
assemblies, along with flat spiders to optimize linearity and die-cast
alloy frames for maximum rigidity and cooling efficiency, and are
equipped with real butyl rubber surrounds. The Concerta B12 sub-
woofer features a massive magnetic motor structure, an aluminum
cone, and is equipped with a CAD-optimized high compliance
butyl rubber surround spider for low distortion and long excursion.
All drivers are magnetically shielded for placement near a video
monitor.
The internal dividing networks featuresteep slope, high order fil-
ters and are equipped with extremely tight tolerance components.
The F12, M12 and C12 all feature 3% tight tolerance crossover
components, while the S12 surround speaker features 5% tight
tolerance components. The use of such tight tolerance crossover
elements ensures outstanding unit-to-unit sonic consistency and
matching to the production reference standard.
Concerta cabinets are constructed of acoustically dense MDF, and
featureinternal bracing for added rigidity and freedom from cabi-
net-induced colorations, and are available in your choice of cherry,
maple, or black cabinet finishes.
The following pages introduce you to each member of the
Concerta loudspeaker family.
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F12
Loudspeaker
F12 in cherry

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Whether the principal loudspeakers
in a stereo music system, or the main left
and right loudspeakers in a multichannel
surround system, the Concerta F12 serves
impeccably with Revel's signature timbral
accuracy and astonishing dynamic range.
The svelte cabinet occupies less
than one square foot of floor space, yet
the F12 produces a broad and expansive
sound stage along with an explosive
dynamic range with a four driver, three
way design that incorporates Revel's
Organic Ceramic Composite (OCC) dia-
phragm technologies.
Low frequencies, all the way down
to the lowest registers at an impressive
28 Hz (-10 dB), are reproduced by a pair
of die-cast frame OCC 8-inch cone
woofers which are equipped with high
current voice coils, distortion-reducing
butyl rubber surrounds and flat high
excursion spiders. The essential midrange
frequencies are reproduced by a 51⁄4-inch
driver featuring a die-cast frame and OCC
cone to eliminate coloration from reso-
nances.
For transparency and delicacy, the
highest frequencies emanate from the 1-
inch OCC dome tweeter that is housed
within the CAI-optimized waveguide
assembly, which provides both optimum
dispersion as well as increased dynamic
range. This carefully optimized dispersion
precisely matches the 51⁄4-inch midrange,
resulting in unprecedented seamlessness
and coherency. The tweeter's neodymium
magnetic assembly features an under-
hung voice coil which ensures linearity
and low distortion.
Internally, the F12's thick MDF cab-
inetry is substantially braced for additional
rigidity, and the steep slope, high order
crossover features the industry's tightest
3% tolerance components for outstand-
ing consistency and matching with the
design reference standard.
The F12 is equipped with bi-amp
capability. All of the F12 drivers are mag-
netically shielded to allow placement near
a CRT video display. The F12 is available
in your choice of cherry, maple or black
cabinet finishes.
Shown on this page: F12 drivers | F12 rear panel | F12 in black | F12 crossover

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M12
Monitor
M12 in maple on optional stands

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The M12 monitor loudspeaker
delivers outstanding timbral accuracy over
a remarkably wide frequency range that
belies its diminutive cabinet size.
The 61⁄2-inch woofer features a rigid
Organic Ceramic Composite (OCC) cone
that is coupled to the die-cast frame via a
high excursion butyl rubber surround, and
includes a flat spider that further aids lin-
earity and reduces distortion. Utilizing an
oversized ceramic magnet, the M12
achieves impressive low frequency
response all the way down to 41 Hz
(-10 dB).
The M12's 1-inch OCC dome
tweeter is mated with our proprietary
“Constant Acoustic Impedance" wave-
guide technology, which provides opti-
mized dispersion over a wide listening
area and reduces distortion and dynamic
compression at elevated listening levels.
This carefully optimized dispersion pre-
cisely matches the 61⁄2-inch woofer, result-
ing in unprecedented seamlessness and
coherency. A powerful, yet compact
neodymium motor system maximizes
sensitivity, while Ferrofluid magnetic cool-
ing fluid contributes to realistic musical
dynamics.
The steep slope, high order
crossover features ultra-tight 3% preci-
sion tolerance components, assuring out-
standing consistency and matching with
the design reference standard.
The M12 monitor loudspeaker is
magnetically shielded, which allows
placement near a CRT monitor in a home
theater system.
Constructed of thick MDF and
internally braced for added rigidity, the
M12 cabinet is equipped with threaded
inserts on the bottom panel to accommo-
date screws for secure fastening to the
optional pedestal stands. Gold plated
binding posts can accept heavy gauge
speaker cables and connectors. The M12
is available in your choice of cherry, maple
or black cabinet finishes.
Shown on this page: M12 drivers | M12 rear panel | M12 in black | M12 crossover

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C12
Center Channel
C12 in cherry on optional stand