Definitive Technology UIW RLS III In-Wall Reference Speaker – Each

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Definitive Technology UIW RLS III In-Wall Reference Speaker – Each

This Definitive Technology UIW RLS llI is Priced and Sold as Each, For a Pair Add Two to Your Cart.

  • Equipped with two 1-Inch pure aluminum dome tweeters
  • Single reference in-ceiling/in-wall surround speaker
  • Outer dimensions: 11 W x 12.75 H-Inch
  • Frequency response: 26Hz-30kHz

In stock

SKU: UIW RLS III (EA) Category:

Frequently Bought Together

Definitive Technology UIW RLS III+Definitive Technology RBRM
Price for both:   $409.98

Product Description

Definitive Technology UIW RLS III In-Wall Reference Speaker – Each

This Definitive Technology UIW RLS llI is Priced and Sold as Each, For a Pair Add Two to Your Cart.

The Reference Line Source III (RLS III) is an enclosed full range loudspeaker engineered for flush mount in-wall installation. The Definitive Technology UIW RLS III features a non-resonant sealed medite (a dense wood product) enclosure to deliver the tight, detailed bass and uncolored midrange of audiophile free-standing speakers in every installation. The performance of open back built-in speakers will vary depending on the nature of the wall/ceiling cavity behind the speaker. But Definitive Reference speakers with integrated enclosures sound superb every time. Rotating dogleg clamps make the Definitive Technology UIW RLS III easy to install in either new or existing construction and provide secure, non-resonant mounting for ultimate audiophile performance free of vibrations and buzzes.


One hole, no mess. Precision templates are included. Exclusive Locking Arm Mounting System grabs your wall with high tension clamps at the turn of a screw, stiffening the baffle and eliminating resonance! (Rough-In Kits for new construction are available, too.) Easy to paint so they virtually disappear into your room, and moisture-resistant for kitchen and even bathroom installations!

Pure Aluminum Dome Tweeters

Exclusive, Definitive-developed Magnetic Fluid-Cooled Moving-Coil Tweeter Dome of Pure Aluminum synergistically brings together the performance advantages of metal domes (greater clarity) and soft domes (smoother sound and better dampening) in one state-of-the-art tweeter design, for detail, clarity and accurate imaging.

High-Definition Cast-Basket Bass/Midrange Drivers

For significant performance advantages in the areas of bass reproduction, lifelike midrange clarity and dynamic range on the Definitive Technology UIW RLS III. (All models except UIW 63/A and UIW 83/A.) Aerodynamically designed, magnetically inert, non-resonant cast baskets minimize reflections of the sound radiating from the back of the cones and preserve structural and magnetic integrity.

Rigid Non-Resonant Glass-Filled Low Profile Frames

Maintain sonic purity by defeating diffraction, giving Definitive Architectural Loudspeakers a wide, dynamic sound stage with minimized resonance or coloration. Molded of a glass-filled polymer compound to eliminate baffle resonance.

Definitive Technology Architectural Loudspeakers come in a wide array of round, rectangular, bipolar, dual-channel and all-weather styles to suit any installation need. They are all engineered to achieve the same level of superior sonic performance as our flagship floor-standing speakers, utilizing the same state-of-the-art components and technologies developed for our top-of-the-line speakers. So you can mix-and-match these in-wall and in-ceiling loudspeakers in systems with other Definitive Technology loudspeakers.

Additional Information


– Speaker type: Indoor
– Color: Paintable
– Number of drivers: 3
– Frequency response: 24Hz – 30kHz
– Sensitivity: 92 dB
– Power handling: 325 W
– Amplifier recommended range: 10-325 watts
– Impedance: 8 Ohms

Mounting Dimensions
– Outer Flange Size: 7″ W x 25″ H
– Cut-Out Size: 5-7/8″ W x 3-7/8″ D x 23-1/4″ H
– Depth from Flange (including drywall thickness): 3-7/8″
– Weight: 16 lbs.

– Mid: Two 5-1/4″ bass/mid drivers
– Bass: Two 5-1/4″ pressure-driven bass radiators
– High: One 1″ pure aluminum dome tweeter
– Recommended Amplification: 10, 325 watts per channel
– Nominal Impedance: Compatible with 4, 8 ohms

Number of Speakers

Single Speaker

Speaker Size



8 Ω

Tweeter Size


Estimated Shipping

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Definitive Technology Canada 5 Year Limited Warranty


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