In-Wall Reference Line Source Speaker

  • 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
  • 899.00 Each

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  • Free ground shipping on all orders

Clearer Highs and Deeper Lows with Superior Audio Performance

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.

  • Tech Specs
  • Reviews
  • Q & A
  • Support
Tech Specs


  • Total Pieces


  • Included Accessories
    • (1) Wall Mounting Template
    • (1) Paint Mask
    • (1) Paintable Grille
    • (1) Self Adhering Foam Gasket
  • Optional Accessories
    • (0)


  • Cabinet Warranty
    5 years
  • Drivers Warranty
    5 years

Shipping Cartons

  • Carton 1
    35" (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

  • Qty Included
  • Availability
  • Orientation
  • Driver Complement
    • (1)  1" (2.54 cm) d (Round) Tweeter - Pure Aluminum Dome
    • (1)  6.5" (16.51 cm) d (Round) Mid/Woofer - High Definition Bass/Midrange Driver
    • (2)  6.5" (16.51 cm) d (Round) Bass Radiator - Planar Bass Radiator
  • Grille Dimensions
    29.75" (75.57 cm) h x 8.13" (20.65 cm) w


  • Peak Power Handling
    350 watts
  • A/V Receiver Crossover Settings
    Array: Small (40 Hz)


  • Audio Inputs

Audio Quality

  • Total Frequency Response
    22 Hz → 30 kHz
  • Max Sensitivity (1 watt @ 1 meter)
    92 dB

In-Wall Mount

  • Shape
  • Dimensions
    28.5" (72.39 cm) h x 7" (17.78 cm) w
Q & A

Product Documentation

Key Features

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.

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