Click here to schedule your virtual consultation today! Schedule Now

Definitive Technology® Reference Series 6.5" White In-Wall/In-Ceiling Surround Speaker

Model #: UIW RSS II
Definitive Technology
At a Glance
The Reference Line Source II enclosed full-range loudspeaker delivers sonically sharp audio without vibration or buzz. Non-resonant sealed medite cabinets produce tight bass and clear midrange. A pure aluminum dome tweeter, two pressure-driven Low Bass radiators and their extraordinary performance make the RLS II perfect for left, right, center or surround applications in home theaters or multichannel music systems.
Available in Store Only
$699.00Save $NaN

Get to know this product.

Higher impact punch from dual 6.5" cast basket drivers

  • Deeper bass pours through a pair of 6.5" pressure-coupled Low Bass radiators
  • Integrated wood enclosure supplies uncolored midrange audio with greater detail
  • Easy installation with rotating dogleg clamps for non-resonant mounting

Pure Aluminum Tweeter

Smooth high frequency response rings true from a pure aluminum dome tweeter set among high definition bass/mid drivers.

Non-Resonant Sealed Medite

Enclosed in dense wood medite cabinets for vibration-free sound, the UIW RLS II 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 RLS II is easily installed in both new and existing construction applications.

Extraordinary Sonic Performance

The sound you demand from the finest freestanding loudspeakers, now in a full-range, flush mount speaker engineered to hide within your walls.

Useful Documents


Total Pieces1


Included Accessories(1) Wall Mounting Template; (1) Paint Mask; (1) Paintable Grille; (1) Self Adhering Foam Gasket
Optional Accessories(1) Rough-in Kit RBRL - Pre-Construction Bracket - Sold Separate


Cabinet Warranty5 years
Drivers Warranty5 years
Original Purchaser OnlyYes

Shipping Cartons

Carton 135" (88.9 cm) h x 11" (27.94 cm) w x 9" (22.86 cm) d - 19 lbs (8.62 kg)

In-Wall and In-Ceiling

Quantity Included1
Driver Complement(1) 1" (2.54 cm) d (Round) - Tweeter; (2) 6.5" (16.51 cm) d (Round) - Mid/Woofer; (2) 6.5" (16.51 cm) d (Round) - Bass Radiator
Depth3.81" (9.68 cm)
Grille Dimensions29.75" (75.57 cm) h x 8.13" (20.65 cm) w


Peak Power Handling350 watts
A/V Receiver Crossover SettingsSmall (40 Hz)


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

Audio Quality

Total Frequency Response22 Hz → 30 Hz
Nominal Impedance8 ohms
Max Sensitivity (1 watt @ 1 meter)92 dB

In-Wall Mount

Dimensions28.5" (72.39 cm) h x 7" (17.78 cm) w

Misc. Specs

Color Finish NameWhite
RMS Power Handling (Watts)200
Impedance8 ohms
Number of Speakers1
Speaker TypeSurround Speakers
WarningProposition 65 Warning for California Residents