Lyngdorf SB-75 Passive Soundbar Announced: High-End Audio Upgrade for 75″ and 77″ TVs

Lyngdorf Audio has introduced the SB-75, a high-end passive soundbar designed to complement 75- and 77-inch televisions, with wider cabinet sizes available by special order. Expected to arrive in the U.S. by Summer 2026, the SB-75 continues the company’s push into luxury home theater solutions alongside its FR-2 loudspeakers, Cue-100 speaker system, and the TDAI-2210 integrated streaming amplifier.

Unlike the $500 all-in-one soundbars stacked by the pallet at big-box retailers, passive soundbars like the SB-75 target a very different audience. These are buyers who already own serious amplification, care about room correction and system matching, and expect a soundbar to deliver the same level of fidelity they demand from their two-channel music systems. In other words, this is for the listener who wants one elegant LCR solution beneath the TV without sacrificing the kind of clarity, dynamics, and scale normally associated with a dedicated speaker system.

That places the SB-75 in a niche but growing category occupied by brands such as Theory Audio Design, which specializes in custom-width passive LCR soundbars designed for 65- to 85-inch displays. Like those systems, Lyngdorf’s approach assumes the use of external amplification, advanced room setup software, and higher-end A/V processors, creating a performance-first alternative to the convenience-driven soundbars that dominate the mainstream market.

SB-75 Overview: Bring Your Own Power

The SB-75 combines two high-end stereo speakers within a single cabinet, giving it the form factor of a soundbar but the design philosophy of a traditional hi-fi loudspeaker. Intended to be wall mounted below a TV or projection screen, the SB-75 is engineered to deliver a wide soundstage and powerful output for both movies and music.

Unlike most soundbars, however, the SB-75 does not include built in amplification. Instead, it uses standard speaker connections, allowing owners to pair it with the external amplifier or amplifiers of their choice, whether that means a high quality two channel amplifier or a pair of monoblocks. This approach provides far greater flexibility for system matching and performance tuning than the typical all in one soundbar design.

High-End Soundbar Design Built Like Real Speakers

The Lyngdorf SB-75 may look like a soundbar, but under the hood it’s closer to a pair of serious hi fi loudspeakers housed in a single cabinet. Designed for on wall installation below a TV or projection screen, the SB-75 combines a slim, space saving footprint with the engineering approach Lyngdorf typically applies to its high end speakers.

Inside the rigid MDF cabinet are six drivers arranged in a stereo configuration. The SB-75 uses four 180 mm (6.5 inch) aluminum cone midrange woofers with 35 mm voice coils, die cast baskets, and vented magnets, paired with two 28 mm (1.1 inch) fabric soft dome tweeters. This configuration allows the SB-75 to function as a full range passive stereo speaker capable of delivering both music and movie soundtracks with convincing scale and clarity.

The cabinet itself is shallow but carefully tuned for placement close to a wall, which improves efficiency and overall output. With a rated sensitivity of 92 dB and a nominal impedance of 4 ohms, the SB-75 is designed to deliver high output levels when paired with quality external amplification.

Lyngdorf lists the SB-75 with a frequency response of 57 Hz to 20 kHz (±3 dB), making it capable of substantial bass performance on its own while still integrating easily with a subwoofer for home theater systems. The soundbar measures 168 x 20 x 11 cm (66 x 7.9 x 4.3 inches), or 11.6 cm (4.6 inches) deep when mounted with the included wall bracket, allowing it to sit discreetly below large flat panel displays while delivering the soundstage of a traditional stereo speaker setup.

Designed for Clean Wall Installation

The Lyngdorf SB-75 is engineered for simple wall mounting and ships with an integrated wall mount bracket for straightforward installation below a TV or projection screen. Its shallow cabinet profile makes placement easy while maintaining a low visual impact in both dedicated home theaters and everyday living spaces.

Finished in an extra matte black, the SB-75 is designed to visually disappear in dark cinema rooms or when placed behind an acoustically transparent projection screen. For more traditional media rooms and living rooms, the speaker features rounded cabinet edges and an elegant midnight gray fabric grille that helps it blend seamlessly with modern interior design.

Pro Tip: The SB-75 is sized to match 75 inch and 77 inch televisions, creating a clean, proportional look beneath large displays. Lyngdorf also offers custom cabinet widths by special order, allowing integrators and homeowners to match the soundbar precisely to other screen sizes.

Steinway Lyngdorf Model S

In addition to the SB-75, Lyndorf Audio’s sister company, Steinway Lyngdorf, offers an integrated powered soundbar system, the Steinway & Sons Model S (originally released in 2024).

Instead of a passive design, the Model S incorporates a high-end speaker speaker assembly, but also provides Room Perfect technology for performance optimization in different room acoustic properties and size, and also includes an externally connected Steinway Lyngdorf amplification system.

Comparison

The Bottom Line 

The Lyngdorf SB-75 isn’t meant for shoppers comparing $300 soundbars at the local electronics store. It’s aimed squarely at enthusiasts and custom installers who want the clean look of a soundbar but refuse to give up the performance of real loudspeakers. By using a fully passive design with external amplification, Lyngdorf offers far more flexibility and system matching than the typical all in one soundbar.

For listeners who value both music fidelity and cinematic impact and already own high quality amplification or plan to build a serious home theater system, the SB-75 delivers something unique: the sound of high end stereo speakers in a single, elegant cabinet designed to sit seamlessly beneath a large screen.

Price & Availability

The Lyngdorf SB-75 is expected to become available by Summer 2026 via Authorized Dealers for an approximate price of $5,000 USD (that does not include required amplification).

Note: The Steinway Lyngdorf Model S is currently available at Authorized Dealers for $17,000.

Related Reading: