Mythos 3C-75
Mythos 3C-75
Mythos 3C-75
Mythos 3C-75
Mythos 3C-75
Mythos 3C-75

Mythos 3C-75

Ultra-Slim On-Wall Passive Sound Bar for 75" Class TVs

The Mythos 3C-75 ultra-slim, on-wall passive sound bar for 75”-class TVs elevates your home theater experience with premium sound and designer aesthetics in an adjustable-width, weather-protected enclosure.

  • Adjustable-Width for 75” Class TVs
  • Less Than 2" Deep
  • Three-Way, 13-Driver Array
  • 3.5" XTDD Drivers & 1" Aluminum Oxide Dome Tweeters
  • Wall-Mount Options (VESA Compatible)
  • IP66-Rated
Choose Color:
Black
Black
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Mythos 3C-75

Mythos 3C-75

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Superior Sound, Streamlined Style

Superior Sound, Streamlined Style

Audiophile Appeal

Audiophile Appeal
Premium Definitive Technology acoustics in a designer- inspired, adjustable-width enclosure.
Designer Style

Designer Style
Sleek, low-profile designer cabinet adjusts to match television dimensions.
Ideal for Outdoor Use

Ideal for Outdoor Use
Weather-resistant, IP66-rated construction ensures reliable performance, indoors and in covered outdoor environments.
Mythos 3C-75

Premium Sound, Designer Aesthetics

Mythos 3C-75

Premium Sound, Designer Aesthetics

Ultra-stiff anodized aluminum dome woofers and midrange drivers eliminate break-up and broaden dispersion for crisp, clear sound and a spacious, enveloping soundstage.

Rigid, well-damped Dymension™ Series tweeters deliver smooth extended response, crisp transients, and pin-point imaging for cohesive, lifelike sound that draws you inside the action.

3C-75’s ultra-slim, wall-mount cabinet measures less than 2” deep; symmetrically adjustable extensions expand up to 3.5” to perfectly align with the dimensions of 75”-class displays, for a cohesive look.

3C-75’s ultra-slim, wall-mount cabinet measures less than 2” deep; symmetrically adjustable extensions expand up to 3.5” to perfectly align with the dimensions of 75”-class displays, for a cohesive look.

A highly rigid, tuned aircraft-grade aluminum enclosure houses a 13-speaker array, with each channel in its own acoustic chamber. You’ll experience the truest sound, uncolored by cabinet resonances.

XTDD Drivers for spacious, dynamic sound in every seat 3XR™ Architecture for as much bass as a ported 12” subwoofer Aluminum Oxide Dome Tweeters for exceptional definition and realism Precision Crossovers for dynamic, balanced response Slim Profile and Adjustable Width for a streamlined appearance Acoustically Optimized Cabinet for pristine sonic reproduction
XTDD Drivers for spacious, dynamic sound in every seat
One, two, or four subs for smoother bass throughout the room

Timbre-Matching for uniform voicing in any configuration

Consistent sound across Definitive Technology models gives you the flexibility to mix and match speakers to build the ultimate system or a starter system that can expand as your needs grow.

All-In-One Sound Bar for big sound in an ultra-slim cabinet

Use a Mythos 3C-75 on its own or with a Descend subwoofer for larger-than-life sound in a low-profile, all-in-one system.

All-In-One Sound Bar for big sound in an ultra-slim cabinet

Compare Definitive Technology Sound Bars

This Model
Mythos 3C-75
Mythos 3C-75
Ultra-Slim On-Wall Passive Sound Bar for 75" Class TVs
Width Aligns with 75” class TVs
Three-Way, 13 Driver Array
65.8 – 69.2” Adjustable Width
Wall-Mount Options (VESA Compatible)
Mythos 3C-85
Mythos 3C-85
Ultra-Slim On-Wall Passive Sound Bar for 85" Class TVs
Width Aligns with 85” class TVs
Three-Way, 13 Driver Array
72.8 – 79.5” Adjustable Width
Wall-Mount Options (VESA Compatible)
Mythos 3C-65
Mythos 3C-65
Ultra-Slim On-Wall Passive Sound Bar for 65" Class TVs
Width Aligns with 65” class TVs
Two-Way, 11 Driver Array
56.5 - 60” Adjustable Width
Wall-Mount Options (VESA Compatible)
Mythos 3C-75
Details & Specifications
  • Dimensions (H x D) 6.25 x 1.87 in. (159 x 47.5 mm)
  • Adjustable width (W) 65.8 ~ 69.2 in. (1671 ~ 1758 mm)
  • Symmetrically adjustable extensions 3.42 in. (87 mm)
  • Weight 20 lbs (9.3 kg)
  • Color/Material Black anodized aluminum
  • Grille material Micro-perforated powder-coated steel
  • Tweeter (3) 1 in. aluminum oxide dome
  • Midrange (2) 3.5 in. XTDD aluminum 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)
  • Sensitivity 88dB (2.83V/1m)
  • Recommended amplifier power 25-150W per channel
  • IP rating (Ingress Protection) IP66
  • Warranty 5 year
  • Included accessories (2) VESA-mount brackets and spacers
    (1) Wall-mount bracket

What Obsession Sounds Like

We earned our award-winning reputation by crafting speakers of the highest performance and quality standards. Our signature sound delivers an immersive sound field, ultra-wide dynamic range, crystal clear highs, and thunderous bass, delivering thrilling experience to movie & music lovers like you.

A close up of the Definitive Technology logo stamped on a speaker