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Definitive Technology® Reference Series 5.25" In-Ceiling Speaker

Model #: UIW RCS II
Definitive Technology
0% Financing
At a Glance
$849.00Save $NaN


Get to know this product.

UIW RCS II™ Reference In-Ceiling Loudspeaker

  • Wave Launch™ technology makes your ears think the in-ceiling speakers are right in front of you
  • Two cast basket drivers and pressure-coupled Low Bass radiators bring deep bass and high punch
  • Pure aluminum dome tweeter produces pristine high frequencies
  • Minimized visibility puts the focus on sound quality rather than the speaker
  • White Finish

Down-Angled Driver Array

RCS II speakers have a D’Appolito driver array aimed at the listening area, which includes two cast-basket bass/midrange drivers and a pure aluminum tweeter.

High Praise for the Low End

The active driver/bass radiator combination achieves a deep, dynamic low-frequency response that blends with a subwoofer for a quality other in-ceiling systems haven’t seen.

Uniquely Effective Acoustic Treatment

Precisely configured dual angled baffles, a computer-optimized ribbed surface and dampening panels achieve linear uncolored sound that seems to float in space.

Easily Installed High Performance

Non-resonant sealed medite enclosures are inert and free of vibrations, with six rotating dogleg clamps and beefy wood screws for easy, secure installation.

Useful Documents


Enclosure Type:Sealed Medite
Tweeter Size:1"
Midrange Size:5.25"
Bass Size:6.5


Description:Definitive Technology® Reference In-Ceiling Loudspeakers with patented Wave Launch technology creates the illusion that the speakers are in front of you, not above you
Features:<p> The RCS II features a D&#39;Appolito driver array angled down and aimed at the listening area (two 5-1/4&quot; cast-basket bass/midrange drivers and a 1&quot; pure aluminum tweeter) as well as two 6-1/2&quot; pressure-coupled planar low bass radiators. Proprietary Wave Launch (patent pending) baffle geometry and acoustic treatment materials serve to create the illusion that the speakers are directly in front of the listener rather than up in the ceiling. 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 RCS II is truly remarkable, combining breath-taking dynamics, engrossing musical subtlety and amazingly spacious imaging that totally belies its in-ceiling configuration.&nbsp;In addition, the RCS II 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, the in-wall IWSub 10/10 or UIW Sub Reference are perfect complements to the RCS II for unmatched performance in a stealth home theater.</p> <ul> <li> Patented Wave Launch technology creates the illusion that the speakers are in front of you, not above you</li> <li> Two 5-1/4 inch cast basket drivers and 6-1/2 inch pressure-coupled Low Bass radiators for impressive deep bass with high impact punch</li> <li> Integrated wood enclosure ensures consistent high performance every time</li> <li> One 1 inch Pure aluminum dome tweeter</li> <li> Installs in either new or existing construction applications</li> </ul> <p> <strong>Warranty Information</strong></p> <ul> <li> Electronic components- 3 Years Parts and Labor</li> <li> Drivers and Cabinet- 5 Years Parts and Labor</li> </ul>


Shipping Weight:22


Crossover Type:Small (40 Hz)


Impedance:8 ohm
Maximum Power Handling:250
Number of Speakers:1
Sensitivity:92 dB



Misc. Specs

Color Finish NameWhite
RMS Power Handling (Watts)250
Impedance8 ohms
Maximum Power Handling (Watts)250
Number of Speakers1
Speaker TypeIn-Ceiling Speakers
WarningProposition 65 Warning for California Residents