RevelPerforma F52Revel Performa F52 SpeakersSound excellent. One small tear in speaker grill. One area of wood visible without stain. Purchased on Audiogon 3 years ago. Rarely used since that time. Selling because they are larger than I ne...2600.00

Revel Performa F52 Speakers [Expired]

no longer for sale

Sound excellent. One small tear in speaker grill. One area of wood visible without stain. Purchased on Audiogon 3 years ago. Rarely used since that time. Selling because they are larger than I need. The Revel Performa F52 delivers an impressive combination of wide frequency range, uncompressed dynamic range, and low distortion across the entire audible spectrum. Five proprietary transducers, sophisticated filter networks, and an acoustically inert cabinet allow the F52 to achieve acoustical precision and performance befitting the most demanding home entertainment systems. The F52 features advanced woofer and midrange motor structures that include two high-grade Neodymium magnets placed at the center of the motor structure, inside the voice coil, for improved magnetic shielding. Inside the motors, black-plated steel shield cups facilitate heat dissipation for higher power handling. Integrated aluminum flux stabilization rings minimize modulation inside the motor static gap flux fields, greatly reducing distortion. Copper rings inside each motor gap reduces distortion even further. Both rings are optimally sized and placed to maintain constant linear voice coil inductance with forward and backward cone motions. Combining superior form and function, the F52 transducers feature a distinctive design that allows for smoother frequency response. The woofer and midrange cones are constructed with Organic Ceramic Composite cone material to reduce distortion, while the spiders are constructed with a high-strength Nomex blend with optimized geometry for increased linearity. A three-way design, the F52 transducers accurately reproduce the entire audible spectrum. Three 6.5-inch (165mm) woofers deliver highly refined and dynamically authoritative low frequencies down to the very lowest octaves. Housed in its own sub-enclosure, a 5.25-inch (133mm) midrange handles critical mid-band frequencies with natural tonal balance over a wide operating range. A 1-inch (25mm) aluminum-dome tweeter, incorporating a custom-designed wave guide, blends perfectly with the midrange and reproduces high frequencies well above audible levels. The tweeter is vented for improved cavity damping and low frequency mechanical resonance. High-order filters at 200Hz and 2.3kHz optimize loudspeaker on and off-axis response, helping to ensure smooth octave-to-octave balance and timbral accuracy. Separate woofer, midrange, and tweeter filter boards prevent mutual interference between filter network components, dramatically reducing distortion over a wide dynamic range. Separate Low Frequency Compensation and Tweeter Level switches allow precise adjustment for less-than-ideal listening room acoustics and loudspeaker placement. Removable shorting straps and gold-plated binding posts accommodate single-wired, bi-wired, and bi-amplified connections. The F52 cabinet is constructed with 1-inch (25mm) thick walls and extensive internal bracing to reduce cabinet-induced colorations. Rounded baffle edges minimize diffraction and optimize off-axis response for smoother high-frequency reproduction. Adjustable spikes are attached to the bottom of the cabinet for optimal stability, accommodating installations on tile, hardwood, or carpeted floors. A sonically optimized grille is also included. Each F52 is individually hand-tuned during manufacturing to match the production reference standard within a fraction of a decibel, ensuring incomparable loudspeaker-to-loudspeaker consistency. • True full-range reproduction • Three proprietary 6.5-inch (165mm) woofers with Organic Ceramic Composite cones • Proprietary 5.25-inch (133mm) midrange with Organic Ceramic Composite cone • Proprietary 1-inch (25mm) aluminum dome tweeter incorporating a proprietary wave-guide • High output with low distortion • Separate filter boards for each frequency range • Adjustable low frequency compensation • Adjustable calibrated tweeter level • Advanced woofer and midrange motor structure • Magnetic shielding • Large voice coils for wide dynamic range without compression • Hand-tuned to match the production reference standard within a fraction of a decibel • Adjustable spikes • Elegant cabinet design in real wood veneer finishes • Removable gold-plated shorting straps • Gold-plated binding posts SPECIFICATIONS DIMENSIONS Width: 9.5 inches (24.13cm) Height: 43.94 inches (111.61cm) Depth: 17.5 inches (44.45 cm) with grille 17 inches (43.18cm) without grille Weight: 87.70 pounds (39.78kg) with grille 86.20 pounds (39.10kg) without grille Specifications Sensitivity Impedance 87.5dB SPL with 2.83Vrms @1 meter (4 pi anechoic) • 6.5Ω (nominal) • 3.5Ω (minimum @ 373Hz) Indicates the amount of power the associated power amplifier must deliver to drive the loudspeaker at reasonable volume levels. Conservatively-rated specifications indicate moderate sensitivity, meaning that a massive power amplifier is not required to drive Revel loudspeakers to reasonable 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 3.5Ω allows a reasonably designed power amplifier to drive Revel loudspeakers. Filter Network • Three-way, high-order acoustic response @ 200Hz and 2.3kHz 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. Revel's filter networks are mounted on printed circuit boards with carefully selected components. Woofer, midrange, and tweeter filter boards are independent of one another. Each includes provisions for single-wired, bi-wired, and bi-amplified connections as well as flexible controls for user adjustments. Target Response • ±0.5dB from 31Hz to 20Hz Indicates sound quality in context with the individual loudspeaker's application, considering the acoustical impact of its placement. An ideal response goal, a target response is not flat at either end of the audible spectrum and is used when the ideal reference is not a flat line. In-Room Response • ±0.5dB from 33Hz to 18kHz 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 loudspeaker'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 loudspeaker 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. First Reflections Response • ±0.5dB from 33Hz to 17kHz Indicates the response listeners hear in relation to the first reflections from walls, ceilings, and floors. This specification indicates that Revel loudspeakers will remain accurate, even in listening rooms that cast strong reflections. Listening Window Response • ±1.0dB from 38Hz to 18kHz Indicates the on-axis response of the loudspeaker. An improved on-axis measurement, this specification reduces the visual confusion of inaudible interference. It retains full accuracy without using "spectral smoothing," which results in significant data loss. Low-Frequency Extension • --10dB @ 23Hz • --6dB @ 26Hz • --3dB @ 37Hz 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.
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