Definitive Technology Mythos 3C-65 On-Wall Passive Sound Bar for 65 Inch TVs
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The Mythos 3C-65 ultra-slim, on-wall passive sound bar for 65”-class TVs elevates your home theater experience with premium sound and designer aesthetics in an adjustable-width, weather-protected enclosure.

The Mythos 3C-65 three-channel passive sound bar elevates home theater experiences indoors and in covered outdoor areas. Combining the three front channels of a home theater system in a single cabinet, this ultra-slim, on-wall, two-way speaker blends high-performance sound and designer aesthetics in a weather-protected, adjustable-width rigid aluminum enclosure.



  • Eleven-Speaker Array for powerful, accurate sound
  • XTDD Drivers for spacious, dynamic sound in every seat
  • Slim Profile and Adjustable Width for a streamlined appearance
  • Acoustically Optimized Cabinet for pristine sonic reproduction
  • Luxury Finishes and Sharp Styling for elevating any living space
  • IP66-Rated Protection for security in the elements
  • Timbre-Matching for uniform voicing in any configuration
  • Total System Scalability for elevating any home cinema
  • All-In-One Sound Bar - Big sound in an ultra-slim cabinet


Dimensions (H x D) 6.25 x 1.87 in. (159 x 48 mm)
Adjustable Width (W) 56.5 x 60 in. (1435 x 1524 mm)
Symmetrically Adjustable Extensions 3.4 in. (86 mm)
Weight 17 lbs (7.8 kg)
Color/Material Black anodized aluminum
Grille Material Micro-perforated powder-coated steel
Tweeter (3) 1 in. aluminum oxide dome
Woofer (8) 3.5 in. XTDD aluminum dome
Number of Channels 3 (left, center, right)
Frequency Response 100 Hz–25 kHz (-10dB)
120 Hz–20 kHz (-3dB) 
Nominal Impedance 4Ω (8Ω compatible)
Recommended Amplifier Power 80W
Sensitivity 88dB (2.83V/1m)
IP Rating (Ingress Protection) IP66
Warranty 5 year
Included Accessories (2) VESA-mount brackets and spacers
(1) Wall-mount bracket



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