Definitive Technology Mythos 3C-75 Ultra-Slim On-Wall Passive Sound Bar Review: When it comes to delivering audiophile-grade performance in an ultra-sleek, low-profile enclosure, the Mythos 3C-75 sets a new benchmark. Perfectly tailored for 75-inch-class displays, this three-way, 13-driver array packs premium Definitive Technology acoustics into a mere 1.87-inch-deep cabinet, ensuring you never compromise on style or sonic immersion. Explore more details on our product page or chat with our team to discover how it can transform your home theatre.

Adjustable & Designer-Inspired Cabinet

The Mythos 3C-75 features a symmetrically adjustable-width enclosure (65.8" to 69.2") that aligns flawlessly with most 75-inch TVs. Constructed from aircraft-grade aluminium, its rigid, well-damped chassis minimises resonances, delivering a pristine soundstage without unwanted colouration. Whether you mount it beneath your indoor cinema screen or as part of a covered outdoor setup, the IP66-rated weather protection ensures reliable performance in any environment.

Acoustic Performance & Imaging

At the heart of the Mythos 3C-75 lies an impressive thirteen-driver array: eight 3.5″ XTDD aluminium dome woofers, two 3.5″ XTDD aluminium midrange drivers, and three 1″ aluminium oxide dome tweeters. This meticulously tuned configuration, paired with precision crossovers, yields a balanced frequency response from 100 Hz to 25 kHz (-10 dB). The ultra-stiff XTDD drivers ensure expansive dispersion and dynamic headroom, while the Dymension™-series tweeters serve up pinpoint imaging and silky-smooth highs.

Technical Deep Dive

• Nominal Impedance: 4 Ω (8 Ω compatible) for seamless integration with most AV receivers.
• Sensitivity: 88 dB (2.83 V/1 m) ensures efficient power handling across 25–150 W per channel.
• Crossover Networks: Custom-designed filters optimise driver performance and preserve phase coherence for a cohesive soundfield.
• Timbre-Matching: Uniform voicing across Definitive Technology speakers allows easy system expansion with side or rear channels.

Who Should Consider the Mythos 3C-75?

This sound bar is ideal for discerning audiophiles and home theatre enthusiasts seeking a discreet yet powerful solution. If you’re after:

• Ultra-slim profile without sacrificing fidelity
• Seamless integration with high-end AV setups
• Weather-resistant design for covered outdoor cinemas
• A system you can expand with subwoofers and surround speakers

…then the Mythos 3C-75 is tailored for you. To refine your setup or discuss custom configurations, give our friendly team a call on 1300 308 711 or email our team.

Pros & Cons

• Pros:
  • Ultra-slim, adjustable-width aluminium cabinet
  • IP66-rated for indoor and covered outdoor usage
  • Thirteen-driver, three-way design for precise imaging
  • High dynamic range with smooth, extended response
  • Easy integration and expansion via timbre-matching
  • Five-year manufacturer warranty
• Cons:
  • Requires a compatible amplifier (25–150 W per channel)
  • Best performance with optional subwoofer for deeper bass

Elevate Your Viewing Experience

By blending cutting-edge acoustics with refined aesthetics, the Definitive Technology Mythos 3C-75 Ultra-Slim On-Wall Passive Sound Bar delivers an immersive, high-fidelity experience that complements any 75″ display. Whether you’re binge-watching the latest series or hosting alfresco movie nights, this sound bar ensures every note and dialogue resonates with clarity and impact. Ready to transform your home theatre? Speak with our experts or email our team to craft your perfect audio solution.