Definitive Technology DI 5.5S Disappearing 5 1/4 inch In-Wall Speaker – Each


Optional Accessory

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Disappearing In-Wall series 5-1/4

  • Flangeless design & micro-perf grille minimize visibility
  • Simple to install — no spackle work required
  • 7-3/8 square inches (18.62 square cm) visible area is noticeably smaller than competing nominal 6-1/2″ models
  • Perfect for use as side/rear surround speakers in home theater systems
  • Latest generation BDSS drivers for audiophile-grade sound quality
  • Pivoting Pure Aluminum dome tweeters
  • Axially Aligned design ensures broad, balanced coverage area
  • GaussGrip(TM) magnetic grille fasteners
  • Adjustable high-definition crossover
  • Cast PolyStone(TM) baskets for rigidity without “ringing”


Driver Complement

Quantity 1
Diameter 1″ (2.54cm)
Type Pivoting Pure Aluminum Dome
Mid / Woofer
Quantity 1
Diameter 5 1/4″ (13.34cm)
Type BDSS Midrange Driver
Tweeter/Mid Array
Type Direct Radiating 2 Way Coaxial


Environmental EQ
3 Way Switch User Selectable


Audio Inputs
Speaker Level 1 Pair (Heavy Duty Spring Loaded)
Maximum Sensitivity
1 watt @ 1 Meter 89 dB
Total Frequency Response
Overall 28 Hz – 30 kHz
Nominal Impedance
Compatible with 8 ohm
A/V Receiver Crossover Setting Small (80 Hz)
Power Handling 10 – 175 watts per channel


Cut Out Dimensions
Height 6 5/16″ (16.03cm)
Width 6 5/16″ (16.03cm)
Mounting Depth 3 5/8″ (9.21cm)
Internal Clearance Required for Mounting Dogs (add to each side of Cut Out) 1″ (2.54cm)
Grille Dimensions
Height 7 3/8″ (18.73cm)
Width 7 3/8″ (18.73cm)
Orientation In Wall or In Ceiling
Cabinet Type
Speaker Enclosure Infinite Baffle
Product Weight
Out of Box 3.8 lbs

Additional information

Weight 8 lbs


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