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Definitive Technology® Reference Series In-Ceiling Speaker-UIW RCS III

Model #: UIW RCS III
Definitive Technology
At a Glance

The in-ceiling UIW RCS III reshapes sound waves to make you believe you’re sitting front row center. Patented Wave Launch technology turns overhead speakers into works of engineering wonder, using precisely configured dual angle baffles to create acoustics that surround you anywhere in the room. With speakers that produce so much sound from such a minimal space, your ears never had it so good.

Available in Store Only
$649.00Save $NaN

Get to know this product.

UIW RCS III™ Reference In-Ceiling Loudspeaker

  • Front row audio experiences come to life with patented Wave Launch technology
  • Breathtaking sound dynamics ring true with the pure aluminum dome tweeter
  • Minimal visibility and easy installation with six rotating dogleg clamps and hefty wood screws
  • Integrated wood enclosure creates greater audio performance with uncolored clarity
  • White Finish

Active Driver/Bass Radiator

In-ceiling speakers reach new heights with deep, dynamic low-frequency response and smooth, controlled roll-off for seamless blending with subwoofers.

Pure Aluminum

Smooth, high frequency response rings true from the pure aluminum dome tweeter set among high definition bass drivers with cast baskets.

Non-Resonant Sealed Medite

Enclosed in dense wood medite cabinets for vibration-free sound, the UIW RLS II supplies natural, uncolored midrange and tight, detailed bass.

Extraordinary Sonic Performance

The sound you demand from the finest freestanding loudspeakers, now in a full-range, flush mount speaker engineered to hide within your walls.

Useful Documents


Total Pieces1


Included Accessories(1) Wall Mounting Template; (1) Paint Mask; (1) Paintable Grille; (1) Self Adhering Foam Gasket


Cabinet Warranty5 years
Drivers Warranty5 years

Shipping Cartons

Carton 116" (40.64 cm) h x 12" (30.48 cm) w x 13.25" (33.66 cm) d - 14 lbs (6.35 kg)

In-Ceiling Speaker

Quantity IncludedUS
Availability(1) 1" (2.54 cm) d (Round) Tweeter - Tweeter; (2) 5.25" (13.34 cm) d (Round) Midrange - Tweeter; (2) 6.5" (16.51 cm) d (Round) Bass Radiator - Tweeter
Driver Complement15.5" (39.37 cm) h x 15.5" (39.37 cm) w
Weight13 lbs (5.9 kg)
Grille Dimensions11.5" (29.21 cm) h x 11.5" (29.21 cm) w

In-Ceiling Mount

Dimensions10.38" (26.37 cm) h x 10.38" (26.37 cm) w


Speaker Inputs(1) Pair of Heavy Duty, Spring Loaded - na

Audio Quality

Total Frequency Response30 Hz → 30 Hz
Nominal Impedance8 ohms
Max Sensitivity (1 watt @ 1 meter)92 dB


Peak Power Handling250 watts
A/V Receiver Crossover SettingsSmall (60 Hz)

Misc. Specs

Product Weight13
Rms Power Handling250
Impedance8 ohm
Maximum Power Handling (Watts)250
Number of Speakers1
Depth (in.)3.12
Height (in.)11
WarningProposition 65 Warning for California Residents