Concerta

F-12
F-12
F-12
F-12
F-12
F-12
F-12

F-12

"F12 loudspeakers are ideally suited as main speakers in stereo system setups or as the front speakers in a multichannel surround home theater installation. Four proprietary transducers, sophisticated filter networks and an acoustically inert cabinet allow the F12 to achieve precise imaging and impressive performance befitting the most demanding home entertainment systems. The svelte cabinet occupies less than one square foot of floor space, yet the F12 produces a broad and expansive stage along with an explosive dynamic range with a four driver, three-way design that incorporates Revel’s Organic Ceramic Composite (OCC) diaphragm 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 5¼-inch driver featuring a die-cast frame and OCC cone to eliminate coloration from resonances. 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 5¼-inch midrange, resulting in unprecedented seamlessness and coherency. The tweeter’s neodymium magnetic assembly features an under-hung coil which ensures linearity and low distortion.


Internally, the F12’s thick MDF cabinetry is substantially braced for additional rigidity, and the steep slope, high- order crossover features the industry’s tightest 3% tolerance components for outstanding consistency and matching with the design reference standard. The F12 is equipped with bi-amp capability. All of the F12 drivers are magnetically shielded to allow placement near a CRT video display. The F12 is available in your choice of cherry or black cabinet finishes."

http://www.revelspeakers.com/productdetail/~/product/f12.html

得獎項目 / AWARDS & REVIEWS



Specification
Description Concerta Series, 3-Way Floorstanding Loudspeaker
Frequency Response In-room response: ±1.0dB from 58Hz to 18kHz Low-frequency extension: –10dB @ 28Hz Bandwidth: –6dB @ 40Hz and 45kHz
WEIGHT Shipping weight: 62.6 lb (28.4 kg)
DIMENSION 42.3" (107.4 cm) (H) x 9.8" (24.8 cm) (W) x 14.3" (36.3 cm) (D)
Crossover Frequencies 3-Way, high-order @ 575Hz and 3.0kHz
Finishes Black ash (Cherry discontinued as of Oct-2012)
High-frequency Drive Components 1" (2.5 cm) micro-ceramic composite (MCC) cone tweeter
Low-frequency Drive Components Two 8" (20 cm) micro-ceramic composite (MCC) cone woofers
Mid-frequency Drive Components 5 ¼" (13.3 cm) micro-ceramic composite (MCC) cone midrange
Recommended Amplifier Power 20 – 200 Watts
Sensitivity 90.5dB SPL, with 2.83V @ 1m (4 pi anechoic) Nominal Impedance: 6 ohms

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