Definitive Technology UIW RLS III 5.25″ 2-Way Reference In-Wall Speaker


In-Wall Reference Line Source Speaker

  • Two 5-1/4 inch cast basket drivers and 5-1/4 inch pressure-coupled Low Bass radiators for impressive deep bass with high impact punch
  • Integrated wood enclosure ensures consistent high performance every time
  • One 1 inch Pure aluminum dome tweeter
  • Installs in either new or existing construction applications
  • Available individually

New Construction Bracket

Speaker Wire

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SKU: UIWRLSIII Categories: , Brand:


Driver Complement

Quantity 1
Diameter 1″ (2.54cm)
Type Pure Aluminum Dome
Mid / Woofer
Quantity 2
Diameter 5 1/4″ (13.34cm)
Type High Definition Bass/Midrange Driver
Tweeter/Mid Array
Type D’Appolito Direct Radiating
Bass Radiator
Quantity 2
Diameter 5 1/4″ (13.34cm)
Type Planar Bass Radiator


Audio Inputs
Speaker Level 1 Pair (Heavy Duty Spring Loaded)
Maximum Sensitivity
1 watt @ 1 Meter 92 dB
Total Frequency Response
Overall 24 Hz – 30 kHz
Nominal Impedance
Compatible with 8 ohm
A/V Receiver Crossover Setting Small (60 Hz)
Power Handling 10 – 325 watts per channel


Cut Out Dimensions
Height 23 3/4″ (60.33cm)
Width 5 7/8″ (14.92cm)
Mounting Depth 3 13/16″ (9.68cm)
Internal Clearance Required for Mounting Dogs (add to each side of Cut Out) 7/8″ (2.22cm)
Outer Flange
Height 25″ (63.50cm)
Width 7″ (17.78cm)
Vertical Orientation In Wall (Vertical Only)
Cabinet Type
Speaker Enclosure Sealed Medite
Product Weight
Out of Box 14.5 lbs

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