MartinLogan Motion Foundation B2 2-Way Passive Desktop Bookshelf Speakers - Walnut

"Redefines What Bookshelf Speakers Can Achieve"

The largest Motion® Foundation® bookshelf speaker serves up impressive detail and scale completely unexpected in its class. The versatility, and relatively compact size of bookshelf speakers has long made them a popular choice, and the MartinLogan Motion Foundation B2 offers outstanding performance.

Those looking for a fuller sounding stand-mounted or shelf-mounted speaker would be hard pressed to find a better value than the B2. Its 6.5" aluminum midbass driver offers impressive bass, while the Gen2 Obsidian Folded Motion® Tweeter S works within the Folded Motion® Waveguide to blanket your listening area with beautiful sound.

Foundation® B2 is fully compatible with MartinLogan's STAND25 to create a solid stand mount solution.

Award-Winning Performance

The Foundation B2 won a Top Choice Award 2023 from avsforums.com. According to reviewer Erik Wesley, "The MartinLogan Foundation B2 speakers offer a dynamic and lively experience that distinguishes them in a crowded marketplace. When coupled with the Dynamo-600X subwoofer, the audio setup reaches new heights, and the aesthetic appeal of the accompanying stands further elevates the overall experience."

"These speakers are an exceptional value for the investment. Suitable for both seasoned audiophiles and casual listeners, the Foundation B2 speakers are a versatile choice that redefines what bookshelf speakers can achieve across a variety of audio setups, making them an AVS Top Choice for 2023."

MartinLogan Foundation Series

MartinLogan Foundation® Series products set new standards in affordable performance by offering many of MartinLogan’s signature high-performance technologies at approachable prices.

Motion® Foundation® speakers feature the incredible performance of the Gen2 Folded Motion Tweeter S, bringing much of the same performance found in their larger siblings in a more compact and affordable package. This high-performance tweeter is paired with a custom Folded Motion® Waveguide offering consistent, smooth, and controlled sound across the listening space delivering incredible performance in every seat.

Rounding out the sound are specially designed aluminum woofers offering robust and detailed performance across the board.

Gen2 Obsidian Folded Motion® Tweeter S

MartinLogan's signature Folded Motion® Tweeter technology utilizes an extremely low-mass diaphragm that "squeezes" air, thus requiring significantly less excursion than a typical 1-inch dome tweeter. Folding the lightweight film into an accordion-like structure increases the playable surface area while keeping the tweeter size relatively compact. With several times greater surface area than typical tweeters, and an extremely lightweight film, this highly efficient combination provides incredible detail and clarity with virtually zero distortion.

For the Motion® Foundation series, MartinLogan designed its most compact high performance thin film tweeter to date, packing much of the performance found in MartinLogan's Motion® XT, and Motion® series products in a more affordable package. Motion® Foundation redefines what to expect from affordable Hi-Fi speakers, providing an incredible experience that must be heard to believe.

Folded Motion® Waveguide

To further enhance the output and consistency of MartinLogan's latest, and most compact, Gen2 Obsidian Folded Motion® Tweeter S, MartinLogan engineers added the all new Folded Motion® Waveguide to the mix. This waveguide works in tandem with the natural Controlled Dispersion properties of MartinLogan's FMT S to improve the sound consistency across the board, ensuring that every seat gets maximum clarity, especially critical for things like dialog and vocals.

The secondary benefit of the Folded Motion® Waveguide is an increase in the Controlled Dispersion coverage area, enhancing the natural output of the tweeter by 10° in all directions for a generous 90° x 90° pattern. This increase still provides all the benefits of Controlled Dispersion but with a slight increase to the coverage area to help better cope with today’s modern listening spaces, giving you more freedom of placement while still providing the sound quality benefits of controlled dispersion.

Aluminum Midrange and Bass Drivers

Just like MartinLogan’s Motion® XT and Motion® Series, the Motion® Foundation Series uses aluminum cone woofers with stamped steel baskets, a non-resonant sealed chamber format, and unibody cone construction to maximize clarity, detail, and output.

McCracken-Vojtko Crossovers

Combining the Low Distortion Topology of MartinLogan's signature Vojtko Crossover philosophy with a combination of anechoic measurements, proprietary simulation software, in room measurements, and extensive blind listening tests to fine tune the sound profile for each speaker's unique application, MartinLogan refined its signature sound for more output, accuracy and the stunning clarity you can expect from a MartinLogan.

Controlled Dispersion

Room acoustics are vital, as everything in the listening room has an impact on speaker performance. MartinLogan minimizes these harmful effects by focusing the sound into the listening area, increasing flexibility, clarity, and placement options, regardless of the room’s design.

Floor Bounce Compensation

Bringing studio reference sound to reality with precision woofer placement and crossover tuning, MartinLogan engineers have designed their tower models to produce a more natural and full sound by taking advantage of a constant found in all listening rooms: the floor!

Secure-Lock Grilles

Stealth mounting tabs securely hold the grilles in place allowing the listener to customize the appearance of each speaker. Creating a unique look by leaving the grilles on, off, or even rotating them to change the grain of the fabric, providing maximum aesthetic control.