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Specifications
  • Speaker Type
    Bookshelf
    RMS Power
    50 watts
  • Key Specs
    • Speaker Type: Bookshelf
    • RMS Power: 50 watts (The maximum amount of continuous power the device is able to handle.)
  • General
    • Brand: MartinLogan
    • Model Number: FB1WNT
    • Product Name: Motion Foundation B1 2-Way Bookshelf Speaker with 5.5” Midbass Driver (Each)
    • Color: Walnut
  • Audio
    • Speaker Type: Bookshelf
    • Enclosure Type: Bass reflex
    • RMS Power: 50 watts (The maximum amount of continuous power the device is able to handle.)
    • Peak Power Handling: 100 watts (The maximum amount of power an electronic device, like a speaker, can handle without damage. This refers to short bursts of power, while root mean square (RMS) power handling indicates the amount of continuous power a device can sustain. Higher levels of distortion can also occur at peak power levels when the device is powered beyond its recommended usage.)
    • Impedance: 5 ohms (Describes the resistance of an electric signal throughout the system. Devices with low impedance require less power to deliver optimal signals but are more at risk for damage from overloading. Higher impedance requires more power but is more protected from overload damage.)
    • Minimum Frequency Response: 48 hertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The minimum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Maximum Frequency Response: 23 kilohertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The maximum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Sensitivity: 89 decibels
    • Tweeter Type: Folded motion
    • Midrange Type: Cone
    • Number of Tweeters: 1
    • Tweeter Size: 1 inches
    • Number of Midranges: 1
    • Midrange Size: 5.5 inches
    • Number of Drivers: 2
  • Connectivity
    • Wireless Multi-Room Audio: false (Technology that allows multiple speakers and/or soundbars to be connected wirelessly and play audio in separate rooms.)
    • Audio Only Inputs: 1 x Phono
    • Network Connector(s): 1 x RS-232
    • Speaker Wire Connection Type: Binding posts
  • Features
    • Indoor Or Outdoor Use: Indoor (Indicates the appropriate environment product was designed to be used in.)
  • Dimensions
    • Product Height: 13.64 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 7.25 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 9.47 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 11.5 pounds (The out of box weight of the item.)
  • Other
    • UPC: 810123026364

MartinLogan Foundation Series products redefine affordability by incorporating many of MartinLogan's renowned high-performance technologies at accessible prices. Leveraging 40 years of design and engineering prowess and offering MartinLogan’s renowned thin-film performance, Motion Foundation is a gateway into the world of true hi-fi sound. With a choice of 5 different models in 3 different finishes, Motion Foundation speakers are an ideal foundation for building a high performance Stereo or Surround sound system. Bringing high end performance to a wider audience, Motion Foundation offers incredible immersion for all your favorite content. Motion Foundation speakers feature the incredible performance of the Gen2 FMT S, bringing much of the same performance found in our/their larger siblings, in a more compact and affordable package. This high-performance tweeter is paired with a custom Folded Motion Waveguide offering consistent, smooth, and controlled sound across the listening space delivering incredible performance in every seat while also reducing some of the harmful effects of room acoustics. Rounding out the sound are specially designed aluminum woofers for both the midrange and bass drivers offering robust and detailed performance across the board. Motion Foundation models are available in 3 elegant finishes to compliment any decor: Black, Satin White, and Walnut.

  • The MartinLogan Sound: Regardless of the environment, MartinLogan speakers achieve high levels of articulation, detail, and realism. Utilizing exotic thin film technologies and Controlled Dispersion, MartinLogan provides unique and special listening experiences not commonly found in the industry.
  • Gen2 Obsidian Folded Motion Tweeter S: The Gen2 FMT S offers effortless performance, unmatched by conventional technologies. By folding thin film material, MartinLogan can pack more surface area into a small space providing incredible detail and clarity sure to bring your favorite content to life.
  • Folded Motion Waveguide: Enhances the Controlled Dispersion of the Gen2 Folded Motion Tweeter S, 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.
  • Controlled Dispersion: Room acoustics are vital, as everything in the listening room has an impact on speaker performance. MartinLogan minimizes these harmful effects by focusing the sound into the listening area, increasing flexibility, clarity, and placement options, regardless of the room’s design.
  • Aluminium Midrange and Bass Drivers: Using trickle down technology from MartinLogan’s own Motion XT and Motion Series, the Motion Foundation Series uses Aluminum cone woofers to maximize clarity, detail, and output.
  • McCracken-Vojtko Crossovers: The culmination of combining extensive anechoic, in-room measurements, and multiple blind listening tests with the low distortion philosophy of MartinLogan’s signature Vojtko Crossover. Through this process each speaker was refined to achieve peak performance.
  • Secure Lock Grilles: Stealth mounting tabs securely hold the grilles in place allowing the listener to customize the appearance of each speaker. Creating a unique look; leaving the grilles on, off, or even rotating them to change the grain of the fabric providing maximum aesthetic control.
  • Threaded For Stands: Threaded inserts on the bottom of the speaker allow for secure attachment to MartinLogan’s matching speaker stand, the STAND25.
Whats Included
  • Quick Start Guide
  • Feet x4
  • Speaker Grille

Q: What are the dimensions of the speaker?

A: The Motion Foundation B1 speaker has a product depth of 9.47 inches, a width of 7.25 inches, and a height of 13.64 inches.

Q: Do the speakers have a binding post input?

A: These speakers have binding post inputs.

Q: What is the weight of the speaker?

A: The product weight is 11.5 pounds.

Q: How many drivers are included in the speaker?

A: This speaker has two drivers.

Q: What is the minimum frequency response of the speaker?

A: The minimum frequency response of the speaker is 48 hertz.

MartinLogan - Motion Foundation B1 2-Way Bookshelf Speaker with 5.5” Midbass Driver (Each) - Walnut

Model: FB1WNT
SKU: 6548327
$349.99
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Sound QualitySound Quality, Bass, Highs, Size, ValueSound QualitySound Quality
Cons for MartinLogan - Motion Foundation B1 2-Way Bookshelf Speaker with 5.5” Midbass Driver (Each) - Walnut
There were no cons for this productGrilleThere were no cons for this productThere were no cons for this product

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Reviews

Customers are saying

Customers are enthusiastic about the Motion Foundation B1 bookshelf speakers' sound quality. Many comment on the surprisingly great sound for such a small speaker, with some even comparing them favorably to much more expensive models. The rich audio experience is a recurring theme in positive feedback. There were no reported negative customer experiences.

This summary was generated by AI based on customer reviews.

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The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

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