Definitive Technology UIW RSS III Reference In-ceiling/In-wall Bipolar Loudspeaker

The Definitive Technology Architectural Speaker line delivers high performance sound while remaining practically invisible. Intended for use in custom home theaters of the highest quality, UIW RSS III speakers feature non-resonant medite cabinets, producing the tightest bass, clearest midrange and an ideal combination of direct and ambient sound. The result is uniquely immersive surround performance that completely envelops listeners in an expansive, 360-degree sound stage.

  • Bipolar arrays evenly disperse sound effects over a broad area
  • Dual 1″ pure aluminum dome tweeters produce pristine highs
  • High dynamic impact with a pair of 3.5″ cast basket drivers and two 3.5″ pressure-coupled Low Bass radiators
  • Integrated dense wood enclosures provide easy installation and consistent high performance

$599.00 $343.96

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Lower 48 U.S. States


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Driver Complement

Quantity 2
Diameter 1″ (2.54cm)
Type Pure Aluminum Dome
Mid / Woofer
Quantity 2
Diameter 3 1/2″ (8.89cm)
Type High Definition Bass/Midrange Driver
Tweeter/Mid Array
Type Bipolar Configuration
Bass Radiator
Quantity 2
Diameter 3 1/2″ (8.89cm)
Type Planar Bass Radiator


Audio Inputs
Speaker Level 1 Pair (Heavy Duty Spring Loaded)
Maximum Sensitivity
1 watt @ 1 Meter 90 dB
Total Frequency Response
Overall 40 Hz – 30 kHz
Nominal Impedance
Compatible with 8 ohm
A/V Receiver Crossover Setting Small (100 Hz)
Power Handling 10 – 200 watts per channel


Cut Out Dimensions
Height 9 7/8″ (25.08cm)
Width 8 5/16″ (21.11cm)
Mounting Depth 3 7/8″ (9.84cm)
Outer Flange
Height 11″ (27.94cm)
Width 9 7/16″ (23.97cm)
Orientation In Wall or In Ceiling
Cabinet Type
Speaker Enclosure Sealed Medite
Product Weight
Out of Box 7.5 lbs

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