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Foundation C1 offers incredibly clear dialogue to round out the front stage of any Motion Foundation surround sound system all in a space conscious design.
For those building out a surround sound system, the center channel is one of the most important pieces. The majority of dialogue in a movie comes from this speaker, so it is critically important that dialogue be clear. As with all Motion Foundation models the Gen2 Obsidian Folded Motion Tweeter S and Folded Motion Waveguide are used to great effect here to blanket your listening area in crystal clear dialogue. Foundation C1’s aluminum midbass drivers are also further enhanced by MartinLogan’s signature 2.5 way “Anti-Lobing” center channel design to provide the performance of larger 3 way designs in a much more furniture friendly package.
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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.
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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 are subject to change without notice
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Frequency Response |
53 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 |
91 dB |
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Impedance |
4 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 |
2,900 Hz, 3,200 Hz (2.5-way) |
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Mid-Frequency Drivers |
2x 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 |
18lbs / 15.4kg |
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Dimensions (H x W x D) |
7-5/8” x 20” x 10” |
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Finish |
Black, Walnut, and Satin White |
