Owner's Manual

4
Revel PerformaBe F228Be M126Be Loudspeaker
Owner’s Manual
ABOUT REVEL PERFORMABe LOUDSPEAKERS
FEATURE HIGHLIGHTS
• Beryllium Dome Tweeter
• 5th-generation Acoustic Lens Waveguide
• Deep Ceramic Composite (DCC™) Cone Midrange and Woofers
• Wide bandwidth and dynamic range with minimal dynamic compression
• High-order Crossovers with Film Capacitors and Air Core Inductors
• Premium High-Gloss Finishes: Black, White, Walnut, Metallic Silver
Thank you for purchasing the Revel PerformaBe loudspeakers. These true
full-range loudspeakers deliver an impressive combination of wide frequency
range, uncompressed dynamic range and low distortion across the entire
audible spectrum.
The tweeter dome is pure Beryllium (Be), a rare and costly metal with a
multitude of properties that make it the ideal tweeter dome material. Beryillium
is extremely low mass (approximately half the weight of aluminum, titanium
and diamond) yet up to 4.5 times stiffer than aluminum or titanium, yielding
superior high frequency extension and resolution to 40kHz. Its high thermal
conductivity helps cool the voice coil for increased reliability. This newly
developed tweeter sets a new standard of transparency for speakers anywhere
near the PerformaBe’s class. The tweeter’s integrated 5th generation acoustic
lens waveguide is based on a breakthrough mathematical approach that
accurately matches the tweeter’s dispersion to that of the midrange transducer
in the crossover region. This gives the loudspeaker very smooth sound over an
exceptionally wide listening area–an important contributor to lifelike imaging
for multiple listeners in a room. Further, the remarkable waveguide actually
increases the tweeter’s dispersion at frequencies above the crossover range.
The Revel PerformaBe’s low frequency and midrange transducers feature
newly developed Deep Ceramic Composite (DCC) cone technology. With DCC
the aluminum cone is exposed to intense plasma discharge in order to fuse
a deep layer of ceramic to both sides of the cone, thereby stiffening and
damping the cone far beyond untreated aluminum. DCC technology reduces
cone resonance and promotes ideal piston motion; the benefits are immediately
audible in midrange purity and detail retrieval. Their cast aluminum frames
eliminate another source of resonance that is common in many lesser-quality
loudspeakers. The PerformaBe models employ a sophisticated fluid-model
designed low frequency port with identical flares on both ends. This greatly
minimizes dynamic compression and port-generated noise, assuring low
distortion low frequency performance.
The Performa enclosures are similar to our flagship Ultima2 Series. The fully
curved enclosure is inherently stiffer than conventional rectangular enclosures.
The cabinet walls are formed with contiguous wood layers to damp material
resonance, while strategically placed braces eliminate the possibility of
enclosure-induced coloration. These beautiful, modern enclosures are finished
in high-gloss black, white, metallic or genuine American walnut in a process
(developed and overseen by Italian luxury cabinet makers) that exceeds
automotive finish quality. The loudspeaker grilles are designed to minimize
diffraction to maintain perfect three-dimensional imaging. The magnetic grille
attachment method completely eliminates ugly hardware on the loudspeaker
baffle. Whether you use them with or without grilles PerformaBe speakers will
always present a clean, sophisticated appearance.
Revel Performa Be’s crossover networks features carefully selected components
that contribute to great performance and benchmark setting value. These
high-order crossover networks dramatically reduce distortion and dynamic
compression for clear sound that maintains the same quality over a very wide
dynamic range. These precision networks optimize the speakers’ timbre accuracy,
enhancing musical enjoyment for listeners who are anywhere in the room, not
only those seated on-axis to the loudspeakers. Revel-designed binding posts are
heavily gold plated and include an articulated section that allows for more secure
connections when using spade lugs. The floor standing F228Be includes two sets
of binding posts that enable the loudspeakers to be bi-wired or bi-amped.
During development every Revel loudspeaker model is compared to competitive
models in our unique position-independent double-blind listening lab. This
process utilizes the latest psychoacoustic research to assure that these
listening tests are valid, enabling us to verify that all Revel loudspeakers are
superior to their competitors before they are allowed to go into production.
F228Be OVERVIEW
1" Beryllium Dome
Tweeter with
Acoustic Lens
Waveguide
Dual 8" DCC
Aluminum Cone
Woofers with
Cast Frames
Enclosure with
1"-Thick Panels
and Extensive
Internal Bracing
Front-Firing Bass
Reflex Port
5.25" DCC
Aluminum Cone
Midrange with
Cast Frame
Binding
Posts
Shorting
Straps
Binding
Posts
F228Be Input Plate