MartinLogan Motion Foundation B1 Bookshelf Speaker
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Standard delivery within 2–5 business days
MartinLogan Motion Foundation B1 Bookshelf Speaker - 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.
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Legendary MartinLogan SoundMartinLogan 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 SThe 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. |
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Folded Motion® WaveguideEnhances 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 DriverUsing trickle down technology from MartinLogan’s own Motion XT and Motion Series, the B1 uses the exceptional properties of Aluminum to maximize clarity, detail, and output from the mid-bass driver. |
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Specifications
Specifications are subject to change without notice
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Frequency Response |
48 Hz - 23 kHz ± 3 dB |
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Tweeter Dispersion (horizontal x vertical) |
90° x 90° |
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Recommended Amplifier Power |
15 - 100 watts |
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Sensitivity |
89 dB |
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Impedance |
5 ohms |
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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. |
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Crossover Frequency |
3,400 Hz (2-way) |
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Mid-Frequency Drivers |
5.5” (14cm) aluminum cone with stamped steel basket. Non-resonant asymmetrical chamber format. Unibody cone construction. |
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Cabinet |
Rear Ported |
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Binding Post Inputs |
5-way Binding Posts (Non Bi-Wire) |
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Weight |
11.5lbs / 5.2kg |
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Dimensions (H x W x D) |
13-11/16” x 7-1/4” x 9-1/2” |
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Finish |
Black, Walnut, and Satin White |
Caring for your Speakers and Amplifiers
To Keep your equipment safe these are some best practices to note. Please be advised that this is only to reduce the risk of misuse and is not an exhaustive list.
Speakers
- Speaker terminals are marked red and black, ensure your amplifier to the speakers are wired on the same colours
- Ensure no loose speaker wire from the red touches a loose wire from the black as this will lead to a short circuit and damage either the speaker, the amplifier or both.
- Not all speakers are designed to play at max volume, kindly consider the pairing of your amplifier and speakers
- Speaker cabinets cannot be replaced please handle with care.
AV & Stereo Amplifiers
- If your amplifier has HDMI ports, ensure all devices are off before plugging in the HDMI cable
- Turn off the amplifier before swoping out or adding speaker cable
- Amplifiers generate heat, place them in a well ventilated space. if possible avoid having anything on top of the unit.
- adding a surge protector can assist with power dips which are likely to damage your devices. Isotek and Furman are industry standard.
- Dusty environments can sometimes lead to accumulation of dust in the electronic components that might affect heat regulation
Shipping & Returns
- Free shipping on orders over R500 within the country.
- Standard delivery within 2–5 business days. Delays will be communicated. This might vary slightly depending on your location.
- Return items in original condition for a full refund. (unopened state)
- Returns that are open/unboxed will be subject to a handling fee. Refunds will only be processed after testing the unit.



