Definitive Technology UIW-63/A-CT In-wall Ceiling Loudspeaker (4 Pair)
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Definitive Technology
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Our Price: $1,112.00
Item Description


Definitive Technology UIW-63/A In-wall Ceiling Loudspeaker (4 Pair)

  • One 6-1/2 inch bass/midrange driver for exceptional bass from and in-ceiling speaker
  • One 1 inch Pure Aluminum tweeter for exceptional clarity
  • Perfect for use as surround speakers in a multi-channel system with Definitive free-standing speakers
  • Moisture resistant for use in kitchens and bathrooms
  • Grille and flange may be painted to match ceiling color
  • Available only as a matched pair

Definitive's UIW 63/A CT in-ceiling speaker features a high output 6-1/2 inch driver and 1 inch pure aluminum dome tweeter perfectly blended with a complex phase-coherent Linkwitz-Riley crossover network. The UIW 63/A CT are perfect for front, surround and center channel use in stealth home theater systems or for producing exceptional sounding music throughout your home.


One hole, no mess. Precision templates are included to make cutting the right size hole a breeze even for weekend warrior DIY. 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.) UIW 63/A CT are easy to paint so they virtually disappear into your room, and moisture-resistant for kitchen and even bathroom installations.

Pure Aluminum Dome Tweeters

Exclusive magnetic fluid-cooled moving-coil tweeter dome of Pure Aluminum 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

Aerodynamically designed baskets minimize reflections of the sound radiating from the back of the cones and preserve structural and magnetic integrity for significant performance advantages in the areas of bass reproduction, lifelike midrange clarity and dynamic range.

Rigid Non-Resonant Glass-Filled Low Profile Frames

Molded of a glass-filled polymer compound to eliminate baffle resonance, the UIW 63/A CT's frame maintains sonic purity by defeating diffraction, giving it a wide, dynamic sound stage with minimized resonance or coloration.

Driver Complement
Diameter1" (2.54cm)
TypePure Aluminum Dome
Mid / Woofer
Diameter6 1/2" (16.51cm)
TypeHigh Definition Bass/Midrange Driver
Tweeter/Mid Array
TypeDirect Radiating 2 Way Coaxial
Audio Inputs
Speaker Level1 Pair (Heavy Duty Spring Loaded)
Total Frequency Response
Overall30 Hz - 30 kHz
Nominal Impedance
Compatible with8 ohm
A/V Receiver Crossover SettingSmall (60 Hz)
Power Handling10 - 200 watts per channel
Cut Out Dimensions
Diameter7 5/8" (19.37cm)
Mounting Depth4 3/8" (11.11cm)
Internal Clearance Required for Mounting Dogs (add to each side of Cut Out)3/4" (1.91cm)
Outer Flange
Diameter8 3/4" (22.23cm)
OrientationIn Ceiling
Cabinet Type
Speaker EnclosureInfinite Baffle
Included AccessoriesWall Template; Paint Mask; Paintable Grill
Optional AccessoriesRough-In-Kit (Available Separately)
Carton Size
Height25" (63.5cm)
Width13" (33.02cm)
Depth21 1/2" (54.61cm)
Shipping Weight
Two per Carton31 lbs
Drivers and Cabinet
Parts and Labor5