MartinLogan Motion Foundation B1 Bookshelf Speakers (Pair)

Motion Foundation B1

Small in size but not sound, the most compact Motion Foundation model offers unheard of performance from such a versatile size. The Gen2 Obsidian Folded Motion Tweeter S, Folded Motion Waveguide, and 5.5” aluminium midbass driver work together here to create a completely unexpected and engaging experience from a compact footprint. Foundation B1 is ideal for small spaces, especially when combined with a subwoofer, to create a highly musical, detailed experience wherever high quality sound is desired. Foundation B1 is also threaded to work with our STAND25 to create a stable 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.

Aluminium Mid-Bass Driver

Using trickle down technology from MartinLogan’s own Motion XT and Motion Series, the B1 uses the exceptional properties of Aluminium to maximise clarity, detail, and output from the mid-bass driver.

Modern Design Featuring Timeless Finishes

Motion® Foundation® models are available in 3 timeless finishes to complement any decor: Walnut with Bronze trim, Black with Gunmetal trim, or Satin White with Silver trim.

Specifications

• 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
• Crossover Frequency
• 3,400 Hz (2-way)
• 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.
• Mid-Frequency Drivers
• 5.5” (14cm) aluminium cone with stamped steel basket. Non-resonant asymmetrical 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