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Product Description

The MartinLogan Motion Foundation B2 is 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 have long made them a popular choice. Those looking for a fuller sound stand or shelf mounted solution would be hard pressed to find a better value than the Foundation 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 also fully compatible with STAND25 to create a solid stand mount solution.

Legendary MartinLogan Sound

MartinLogan speakers are known for their exceptional articulation, detail and realism, regardless of the listening environment. By using advanced thin-film technologies and Controlled Dispersion, MartinLogan delivers a unique and unparalleled listening experience that is not commonly found in other speakers.

Gen2 Obsidian Folded Motion Tweeter S

The Gen2 FMT S offers effortless performance, unmatched by conventional technologies. By folding thin film material, MartinLogan is able to pack more surface area into a small space. Large surface area, light weight and low excursion means an incredibly fast and responsive tweeter capable of reproducing the most nuanced content with stunning detail and clarity.

Folded Motion® Waveguide

Enhances the Controlled Dispersion of the tweeter, blanketing the listening area with incredible detail and precision. Avoids performance robbing room reflections and provides a more consistent sound across a wider seating area.

Aluminum Mid-Bass Driver

Using trickle down technology from MartinLogan’s own Motion XT and Motion Series, the B2 uses the exceptional properties of Aluminum to maximize clarity, detail, and output from the mid-bass driver.

Specifications are subject to change without notice

Frequency Response

48 Hz – 23 kHz ± 3 dB

Tweeter Dispersion (horizontal x vertical)

90° x 90°

Recommended Amplifier Power

15 – 100 watts

Sensitivity

89 dB

Impedance

5 ohms

High Frequency Driver

0.94” x 1” (2.4 x 2.5cm) Gen2 Folded Motion® Tweeter S with 3.5 in2 (22.6 cm2) diaphragm.

Crossover Frequency

3,400 Hz (2-way)

Mid-Frequency Drivers

5.5” (14cm) aluminum cone with cast aluminum basket. Non-resonant sealed chamber format. Unibody cone construction.

Cabinet

Rear Ported

Binding Post Inputs

5-way Binding Posts (Non Bi-Wire)

Weight

11.5lbs / 5.2kg

Dimensions (H x W x D)

13-11/16” x 7-1/4” x 9-1/2”
34.6cm x 18.4cm x 24.05cm

Finish

Black, Walnut, and Satin White

Brand

MartinLogan

When it comes to electrostatic speaker design, there is no name bigger than MartinLogan. No company before it had managed to consistently leverage the purity and clarity of electrostatic speakers without sacrificing power and bass. The Kansas-based company's design and engineering teams have perfected the electrostatic model for high-quality audio during the past four decades.

Each component crafted by the company has the same goal: to reproduce the most complex musical recordings faithfully. The company's ESL series is still its most distinguished line. Among the standouts are the Ethos, Spire, and Summit X.

During the past two decades, they've expanded their product line to include home theater loudspeakers like The Stage, soundbars, and cutting-edge subwoofers. They've also introduced industry-leading technology, from handcrafted crossovers to Anthem Room Correction technology integration.

They have never strayed too far from their core focus: reference-grade electrostatic loudspeakers. This is showcased best in their flagship Neolith speaker. Standing over six feet high and made to order, it offers 23–22,000 Hz ±3dB frequency response and 90 dB/2.83 volts/meter sensitivity. For our clients that want this type of craftsmanship at an affordable price, we recommend the Classic ESL 9. It delivers classic audio performance ideal for entry-level audiophiles.

Overture is a proud dealer of MartinLogan products, selling customers the best speakers from MartinLogan. Interested in purchasing a new MartinLogan component? You can trade-in any component towards a MartinLogan product by filling out our Trade-In Form.