Definitive Technology UIW RLS III In-Wall Reference Line Source Speaker – White

Brand: Definitive Technology
Model Number: UIW RLS III
UPC: 093207024122
Model Number: UIW RLS III
UPC: 093207024122

Definitive Technology UIW RLS III In-Wall Reference Line Source Speaker – White

-Ideal for an in-wall music system, or as part of a custom-installed home theater system
-Built-in back-box ensures well-balanced sound and protects against dust and dirt
-1″ aluminum dome tweeter
-Dual 5-1/4″ polypropylene cone midrange/bass drivers with cast baskets





Payments as low as



Availability: In stock

Product Description

Features & Specifications




Definitive Technology UIW RLS III In-Wall Reference Line Source Speaker – White

Immersive Sound at Every Angle

Placement is hardly an issue with the UIW RLS III full-range loudspeaker. Its extraordinary performance is perfect for left, right, center, or surround applications in home theaters or multichannel music systems.

Detailed Presence

From dual 5.25″ cast basket drivers.

Deep Bass

From two 5.25″ pressure-coupled low bass radiators.

Simple and Secure

Easy installation in new or existing construction with the UIW RLS III.

Invisible Sound, Uncompromised Cinematic Performance

With its high-technology flush-mount enclosure that disappears into the environment, the UIW RLS III delivers uncompromising sound that’s heard, but never seen. It provides thrilling sound with room-filling bass, stunning detail, and theater-reference volume levels that rival the best freestanding speakers without the clutter.

Reference-Quality Drivers & Radiators: Flagship Loudspeaker Performance

Ultimate In-Wall series speakers are designed with the same driver technologies as our flagship floor-standing speakers, enabling freestanding speaker-level performance from within your ceiling and walls.

1″ Aluminum Dome Tweeter

The UIW RLS III aluminum dome tweeter delivers a clear, precise high frequency response. Their ultralight, rigid construction enables them to play significantly higher frequencies than we can hear, providing effortless, distortion-free highs within and beyond the audible range.

Installation Flexibility: Customize to your Home

Whether new or existing construction, walls or ceilings, residential or commercial, UIW Reference Series loudspeakers feature simple, secure installations. From metal pivoting lock arms to paintable grilles and frames to fully sealed enclosures, Definitive Technology engineers designed speakers that put installation simplicity on equal footing with sound quality.

Fully Enclosed for Powerful sound where you want it

The UIW RLS III loudspeakers are fully enclosed and sealed with dense, acoustically inert, anti-resonant, anti-vibration Medite® wood. With the RLSIII, you’ll hear loud, accurate, uncolored midrange and tight, powerful bass with no buzzing or sound leakage into walls and ceilings.

Brand Definitive Technology   Model Definitive Technology UIW RLS III
Product: Definitive Technology UIW RLS III In-Wall Reference Line Source Speaker - White

Tweeter Size

Speaker Sensitivity


Number of Speakers


Quantity in Package: Single
Tweeter: Hard-Dome
Aimable Tweeter: No
Woofer Composition: Polypropylene
Woofer Surround: Butyl Rubber
Moisture-resistant: Yes
Connector Type: Spring post
Bi-Amp Inputs: No
Built-in Back-box: Yes


Woofer Size: 5.25
Speaker Shape: Rectangle
Cutout Width: 5.875
Cutout Height: 23.75
Power Range (Watts): 10-325
Frequency Response: 24-30kHz

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Definitive Technology Canada 1 year Limited Manufacturers Warranty