KLH Audio has unveiled Model Four at High End Vienna 2026, the latest addition to its Model Collection. Model Four is a compact 8in three-way acoustic suspension loudspeaker that fills a gap between Model Three and Model Five, uniting the small footprint of Model Three with the sonic architecture of Model Five in a cabinet built for homes where space is precious, design is paramount and fidelity is demanded.
Since KLH reintroduced Model Five in 2021, the brand has been deliberate about every model that followed. Model Three brought acoustic suspension performance to a bookshelf-friendly form. Then came Model Seven, the three-way flagship built around the industry’s first acoustically suspended 13in woofer in an exceptionally narrow, wall-friendly cabinet.
Model Four brings together the defining strengths of the Model Collection. Built around the 8in woofer introduced in Model Three and sharing the same midrange driver, tweeter and crossover architecture as the acclaimed Model Five, it delivers the refined vocal presence, midrange clarity and high-frequency detail that made Model Five an industry benchmark. Its cabinet borrows the wide baffle and shallow depth proportions of Model Seven, a profile purpose-built for placement closer to walls.
While ported cabinet designs can become muddy and distorted when placed near walls or in tighter spaces, acoustic suspension performs beautifully in nearly any room — delivering tight, accurate bass with as little as a few inches of rear clearance and without the wall and room interaction that affects them.
Unlike ported speakers that reward careful placement and punish poor positioning, acoustic suspension simply works. It is optimised to sound consistent and accurate whether tucked against a wall, placed in a corner or pulled into the middle of a room.
Model Four delivers on that room-friendly promise with a 13in-wide front baffle and shallow 8.25in cabinet depth. Paired with a purpose-built 6-degree slanted riser that precisely aligns the tweeter and midrange with the listener, the total depth comes to just under 11in — the shallowest in the Model Collection.
Within Model Four’s sealed and structurally reinforced MDF enclosure sits a three-way acoustic system. An 8in pulp-paper cone woofer with reverse roll rubber suspension reaches down to 46Hz, working in concert with a 4in pulp-paper cone midrange and 1in aluminum dome tweeter to produce a dynamic, full-range presentation.
A three-position Acoustic Balance Control switch — a KLH original introduced in the 1960s — allows listeners to fine-tune the speaker’s mid and high-frequency character to suit each room’s unique acoustics.
“Model Four represents exactly where KLH is headed: honoring the acoustic principles that made this brand stand out while designing products for how people actually live and listen today,” says KLH Audio CEO Scott Hagen. “This is not a bookshelf speaker, nor is it simply a smaller Model Five. It is a distinctive, full-range acoustic-suspension loudspeaker, meticulously built to deliver the natural, controlled and room-friendly sound that defines KLH in a form that fits more homes, rooms and listeners. Our responsibility is to protect the integrity of this brand while moving it forward, and Model Four is a major step in that direction.”
Model Four will be available in the United States and select international markets via a network of premium audio dealers and directly via KLH Audio beginning September 2026, with a retail price of $999.99 USD each ($1,999.98 per pair).
European pricing will be €999.00 each, while pricing in the United Kingdom will be £899.00 each. Interested listeners can sign up to be notified of availability at www.klhaudio.com and view dealers in their region via the dealer locator: https://klhaudio.com/pages/find-a-store.
Finishes are available in English Walnut with Stonewash Knit Grille, Black Ash with Grey Knit Grille and White Oak with Black Knit Grille.
The Model Four will be on display and available for listening at KLH Audio’s suite #1415 at Meliá Vienna throughout High End Vienna 2026, beginning Thursday, June 4.