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Definitive Technology UIW RLS II

In-wall multi-purpose speaker with built-in back-box

Item # 735RLS2

This versatile in-wall speaker from Def Tech delivers smooth, revealing sound while saving space.

This versatile in-wall speaker from Def Tech delivers smooth, revealing sound while saving space.

Item # 735RLS2

Ships free

Temporarily out of stock

Expected: 4/20/2021

$899.00 each

About the Definitive Technology UIW RLS II

Hear it all, see almost nothing

I'm a big fan of Definitive Technology's design philosophy — they have a knack for creating slim speakers that deliver surprisingly spacious sound. The in-wall UIW RLS (Reference Line Source) II is a great example of this. It can give you the kind of big, revealing sound you'd expect from a conventional Def Tech speaker, but without taking up any floor space.

Hear it all, see almost nothing

I'm a big fan of Definitive Technology's design philosophy — they have a knack for creating slim speakers that deliver surprisingly spacious sound. The in-wall UIW RLS (Reference Line Source) II is a great example of this. It can give you the kind of big, revealing sound you'd expect from a conventional Def Tech speaker, but without taking up any floor space.

Use this versatile speaker as a left-, right-, or center-channel speaker in your home theater. Or use a pair as part of a high-end, custom-installed stereo system. The drivers are specially configured to provide optimal performance whether you mount the speaker vertically or horizontally.  

Definitive Technology Reference Line Source UIW RLS II in-wall multi-purpose speaker with built-in back-box

The integrated sealed enclosure helps deliver excellent sound while keeping dust and dirt away.

Excellent sound, no matter what's behind your wall

One of the challenges that in-wall speaker designers face is that they don't know how much air space is inside your walls (or in other words, how big or small your speaker “cabinet” is).

Definitive Technology has a great solution for this — an airtight, built-in wooden back-box that helps the speaker deliver focused, dynamic sound no matter what space is behind your wall. 

The back-box also helps prevent sound from leaking through to an adjacent room, like when you're watching a movie at night while the kids are asleep. 

DIY installation

You can paint the included grille to have your speaker blend in with your room's décor. If this is a do-it-yourself install, check out our guide to installing in-wall speakers, along with our selection of in-wall speaker wire.

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Product highlights:

  • ideal for an elite in-wall music system, or as part of a custom-installed home theater system
  • built-in wooden back-box ensures well-balanced sound and protects against dust and dirt
  • 1" aluminum dome tweeter
  • dual 6-1/2" polypropylene cone midrange/bass drivers with cast baskets
  • dual 6-1/2" pressure-coupled passive radiators for extended bass response
  • frequency response: 22-30,000 Hz
  • nominal impedance: 8 ohms
  • sensitivity: 92 dB
  • magnetic grille is paintable to match your décor
  • compatible with RLS II rough-in kit
  • cutout dimensions: 7"W x 28-1/2"H
  • overall dimensions: 8-1/8"W x 29-3/4"H
  • mounting depth: 3-7/8"
  • warranty: 5 years
  • Our 60-day money-back guarantee
  • MFR # UDEA

What's in the box:

  • In-wall loudspeaker
  • Grille
  • Self-adhesive foam gasket
  • Paint mask
  • Wall-Mount Template
  • Owner's Manual
  • Online Product Registration Card

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More details on the Definitive Technology UIW RLS II

Stacey B.

Features & specs

Features
Quantity in Package Single
Tweeter Hard-Dome
Aimable Tweeter No
Woofer Composition Polypropylene
Woofer Surround Butly Rubber
Moisture-resistant Yes
Connector Type Post
Bi-Amp Inputs No
Built-in Back-box Yes
Specs
Tweeter Size 1
Midrange Size N/A
Woofer Size 6.5
Speaker Shape Rectangular
Cutout Width 7
Cutout Height 28.5
Power Range (Watts) 10-350
Sensitivity 92 dB
Impedance (Ohms) 8
Frequency Response 22-30kHz
Parts Warranty 5 Years
Labor Warranty 5 Years

Product Research

Features

2-Way Driver Design: The Definitive Technology RLS II in-wall loudspeaker features a 2-way driver design with a 1" pure aluminum dome tweeter and two 6.5" polypropylene cone woofers, plus two 6.5" pressure-driven bass radiators. A precision crossover system provides seamless driver blending for a smooth open sound with with wide soundstage.

Non-Resonant Sealed Enclosure: The RLS II 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 ceiling cavity behind the speaker. But Definitive Reference series speakers with integrated enclosures sound superb every time.

Paintable: The UIW RLS II in-wall loudspeaker's grille and frame can be spray painted to match the color of your wall without any loss of sound quality. Simply remove the grille from the speaker and place it on a drop cloth, newspaper, or plastic sheet and spray paint it with canned spray paint that closely matches the desired finish/color (available at home improvement stores). A paint mask is supplied to protect the drivers when painting the frame.

Spring-Loaded Speaker Terminals: The UIW RLS II in-wall loudspeaker features a pair of heavy-duty, gold-plated, spring-loaded posts designed to accept up to 10 gauge wire, banana plugs (single only), or pin-connectors.

Applications: The Klipsch UIW RLS II is intended for use as an in-wall front main left, center or right channel speaker, as well as a rear or side surround speaker in custom installed home theater systems of the highest quality. In addition, it can be used as a superb left or right speaker in a high quality stereo music system.

In-Wall Installation: Eight rotating dogleg clamps and four 3.5" wood screws make the RLS II easy to install in either new or existing construction and provide secure, non-resonant mounting for ultimate audiophile performance free of vibrations and buzzes. In-wall installation requires a cutout of 7.0" (w) x 28.5" (h) x 3.875" (d). A 1" of clearance is required around the cutout, on the outside mounting surface, to clear the in-wall speaker's bezel. A 1.25" of clearance is requied inside the wall, around the cutout, to clear the rotating dogleg clamps.

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