Definitive Technology 3-way white single in-ceiling speaker

UIW RCS II (White)

The UIW RCSII is intended for use as an in-ceiling front main left, center, or right channel speaker, or as a rear or side surround speaker in custom installed home theater systems. It features a D'Appolito driver array (two 5.25" cast-basket bass/midrange drivers and a 1" pure aluminum dome tweeter) as well as two 6.5" pressure-coupled planar low bass radiators.

Reference in-ceiling speaker

The UIW RCSII is intended for use as an in-ceiling front main left, center, or right channel speaker, as well as a rear or side surround speaker in custom installed home theater systems of the highest quality. In addition, it can be used as a superb left or right speaker in a high quality stereo music system.

Optimized performance

Like Definitive Technology's other Reference Architectural Series speakers (IWSub 10/10, IWSub Reference, RLS II and RLS III), the RCSII has a totally non-resonant sealed medite enclosure, which in this case easily and attractively installs flush into the ceiling in either new or existing construction. It features a D'Appolito driver array angled down and aimed at the listening area (two 5.25" cast-basket bass/midrange drivers and a 1" pure aluminum tweeter) as well as two 6.5" pressure-coupled planar low bass radiators. The precisely configured dual angled baffles incorporate a uniquely effective acoustic treatment which combines a computer-optimized ribbed surface with special dampening panels in order to achieve a linear uncolored sound combined with boxless three-dimensional imaging in which acoustic events seem to effortlessly float in space. In fact, the overall sonic performance of the RCSII is truly remarkable, combining breath-taking dynamics, engrossing musical subtlety and amazingly spacious imaging that totally belies its in-ceiling configuration.

Lifelike experience

The RCSII, with its active driver/bass radiator combination, achieves an extended low-frequency response, which is deep and dynamic with a smooth and controlled roll-off that allows it to seamlessly blend with a subwoofer with a quality that has never been previously achieved in an in-ceiling system. Of course, Definitive's in-wall UIWSub 10/10 or UIWSub Reference are a perfect complement to the RCSII for unmatched performance in a stealth home theater.

Renowned for high quality sound

You will get more than you bargained for with the UIWRCSII speaker. This loudspeaker has been painstakingly engineered to ensure that it achieves the same level of superior sonic performance as Definitive's flagship floor-standing speakers, which are renowned for offering the finest sound quality possible. In addition, their subtle and understated, but beautifully sculpted, upgraded styling will complement any decor. These architectural speakers utilize the same state-of-the-art components and technologies developed for Definitive's top-of-the-line speakers including high-definition cast-basket bass/midrange drivers and pure aluminum dome tweeters. One listen and you will know they are the finest sounding architectural in-wall/in-ceiling and outdoor speakers in the world.

The scoop on cast-basket bass/midrange drivers

Most of Definitive's architectural speakers (except the UIW 63/A and UIW 83/A) utilize Definitive-developed high-definition cast-basket bass/midrange drivers for significant performance advantages in the areas of bass reproduction, lifelike midrange clarity and dynamic range. These sophisticated drivers are engineering marvels which incorporate deeply drawn mineral-filled homopolymer cones, combined with butyl rubber dustcaps and surrounds, high-temperature vented voice coils and massive magnet structures. This combination of features assures high-definition, superb transient response, high-efficiency, high-power handling and extended linear response. In addition, the aerodynamically designed, magnetically inert, non-resonant cast baskets minimize reflections of the sound radiating from the back of the cones and preserve structural and magnetic integrity. The UIWRCSII speaker utilizes this technology to maximum effect.

Achieving and maintaining sonic purity

A speaker's baffle, as well as the driver/baffle interface, plays a large part in its sonic performance. Diffraction, or the secondary radiation of sound caused by driver and baffle edges and other protrusions and surface anomalies, can color the sound and impart a boxy coloration. The UIWRCSII speaker is carefully engineered to minimize diffraction problems. In addition, the resonant vibration of a speaker baffle can also impart coloration. Definitive engineers the baffles for maximum stiffness and mold them from a special glass-filled polymer compound in order to eliminate baffle resonance which would otherwise interfere with the pure sound produced by Definitive's high-definition drivers. Finally, a special wall clamping system was designed which uses special high-tension clamps (and more of them) in order to further stiffen the baffle and eliminate unwanted resonance.

Comparison Specifications

Recommended amplifier power: 10 - 250 watts per channel
One 1" pure aluminum dome tweeters
Two high-definition cast-basket 5.25" bass/midrange drivers
Two 6.5" pressure-coupled low bass radiators
Non-resonant sealed medite enclosure
Installs flush into ceiling in either new or existing construction

Additional Specifications

Frequency response: 22 Hz - 30 kHz
White, paintable finish
D'Appolito driver array angled down
Dual angled baffles
Computer-optimized ribbed surface with dampening panels

Manufacturer Specifications

Outer flange size: 15.5" W x 15.5" H x 5.88" D

Dimensional Specifications

Cut-out size: 14.38" W x 14.38" H
Depth of flange: 5.88"

Definitive Technology UIW RCS II Warranty Details

Five-year loudspeaker driver, crossover & cabinet warranty

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