OSD Audio S80-MK2 On-Wall Home Theatre Speaker Review: Cinematic Sound, Discreet Design
In this OSD Audio - S80-MK2 On-Wall Home Theatre Speaker Review, we explore the precision-engineered design and reference-level performance that make the S80-MK2 a standout choice for audiophiles and home theatre enthusiasts. With a max SPL of 108dB, 8-inch long wood fiber woofers, and perfectly matched timbre across the S-Series, these on-wall speakers deliver commercial-theatre dynamics in a shallow 6.2-inch enclosure.

Technical Brilliance Under the Hood
The S80-MK2's 2nd order, 12dB/octave crossover is crafted with air-core chokes featuring 100% oxygen-free copper windings, high-precision 5% resistors and German polypropylene/metal film capacitors. Combined with Japanese silver solder points, this setup ensures ultra-low distortion and crystal-clear signal separation from 90Hz up to 20kHz on-wall.
Design & Build Quality

The shallow 6.2" deep PUV-coated enclosure allows discreet installation next to or behind screens without compromising on rigidity. Gold-plated 5-way binding posts accommodate bi-wiring or bi-amping, while the high-transparency grille blends into any décor.
Visual Tour

Performance & Sound Signature
Equipped with an 8" long wood fiber cone woofer, the S80-MK2 maintains pistonic rigidity at high SPLs, resulting in tight, articulate bass that integrates seamlessly with subwoofers thanks to a gentle 12dB/octave roll-off. The silk dome tweeter delivers silky highs and an expansive soundstage, making dialogue intelligible even at reference levels.
Installation Insights & Use Cases
Perfectly suited for surround and height channels, the timbre-matched S80-MK2 can be paired with S81 and S82 MK2 front LCR speakers for a uniform sonic palette. Mounting is straightforward with the included brackets—ideal for family rooms, media spaces and dedicated home cinemas.
Who Should Consider the S80-MK2?
- Audiophiles seeking reference-level SPL without bulky floorstanders
- Home cinema enthusiasts wanting flush-mount solutions that don’t sacrifice performance
- Installers and custom integrators in search of timbre-matched surround and height speakers
- Anyone desiring an affordable entry into Dolby and THX calibrated sound
Pros & Cons
- Pros: Class-leading 108dB max SPL, precision crossovers, perfect timbre matching across S-Series, shallow mount design, premium build materials.
- Cons: 85dB sensitivity may require more amp power for rock concert levels; 4Ω impedance demands robust amplification.
Elevate Your Home Theatre Experience Today
Ready to integrate truly cinematic dynamics into your setup? Visit the OSD Audio S80-MK2 product page or call our team on 1300 308 711 to chat with our home theatre specialists. Experience the bespoke advice and personalised service that made The Audio Tailor Australia's HiFi Retailer of the Year.