For screen reader problems with this website, please call864-646-34068 6 4 6 4 6 3 4 0 6Standard carrier rates apply to texts.

Due to the pandemic, there is a national shortage on appliances. Please call for in stock availability and order time frames
Shop Online   By Phone      |   
We are open and taking all necessary precautions to keep our customers safe.

Definitive Technology® Reference Series 3.5" White In-Wall/In-Ceiling Surround Speaker

Model #: UIW RSS III
Definitive Technology
At a Glance
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.
$549.00Save $NaN

Get to know this product.

UIW RSS III™ Reference In-Ceiling/In-Wall Bipolar Loudspeaker

  • 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
  • White Finish

Bipolar Surround Experience

Sound engulfs you anywhere in the room with dual 3-way full-range systems in each speaker–a total of 6 driver/radiators per unit.

Pure Aluminum

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

Greater Degrees of Sound Control

For in-ceiling installations, the RSS III’s rotating 90-degree driver arrays give you the freedom to optimize performance in relation to your room and seating arrangement.

Non-Resonant Sealed Medite

Enclosed in dense wood medite cabinets that eliminate vibrations and buzzing, the UIW RSS III reveals natural, uncolored midrange and tight, detailed bass.

Simple Stealth Installation

With a flush mount design and rotating dogleg clamps that provide secure, non-resonant mounting, the UIW RSS III is easily installed in both new and existing construction applications.

Useful Documents


Sold AsEach
Grille Dimensions11" (27.94 cm) h x 9.44" (23.98 cm) w
Shipping Carton13.5" (34.29 cm) h x 13.5" (34.29 cm) w x 7.25" (18.42 cm) d
Shipping Weight9 lbs (4.08 kg)

Driver Complement

Tweeter(2) 1" (2.54 cm) d (Round) - Tweeter
Mid/Woofer(2) 3.5" (8.89 cm) d (Round) - Mid/Woofer
Bass Radiator(2) 3.5" (8.89 cm) d (Round) - Bass Radiator

In-Wall Mount

Dimensions9.88" (25.1 cm) h x 8.31" (21.11 cm) w

In-Ceiling Mount

Dimensions9.88" (25.1 cm) h x 8.31" (21.11 cm) w


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


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

Audio Quality

Total Frequency Response40 Hz to 30,000 Hz
Nominal Impedance Range8 ohms to 4 ohms
Max Sensitivity (1 watt @ 1 meter)92 dB


A/V Receiver Crossover SettingsSmall (120 Hz)

External Amplifier

Recommended Amplifier Power Per Channel10 watts to 300 watts


Cabinet Warranty5 Years
Drivers Warranty5 Years

Included Accessories

Wall Mounting Template1
Paint Mask1
Paintable Grille1
Self Adhering Foam Gasket1

Misc. Specs

Color Finish NameWhite
RMS Power Handling (Watts)300
Impedance8 ohms
Maximum Power Handling (Watts)300
Number of Speakers1
Speaker TypeSurround Speakers
WarningProposition 65 Warning for California Residents