Martin Logan Motion Foundation B1 (Pair)

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” aluminum 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.

SPECS Frequency Response 48 Hz - 23k Hz Tweeter Dispersion 90° (vertical) x 90° (horizontal) Sensitivity 89 dB Impedance  5 ohms Crossover Frequency  3400 Hz High Frequency Driver  1" (vertical) x 0.94" (horizontal) Mid-Bass Driver 5.5" (14cm) aluminum cone with stamped steel basket. Non-resonant asymmetrical chamber format. Unibody cone construction. Cabinet Rear Ported Recommended Power Range  8.75" 15 - 100 watts 44.41" Binding Post Inputs 5-way Binding Posts (Non Bi-Wire) 42.99" Weight  11.5lbs / 5.2kg Dimensions (HxWxD)*  13.64" x 7.25" x 9.47"   34.64cm x 18.41cm x 24.05cm Finish Black, Walnut, and Satin White