The MartinLogan Foundation Story

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.  

Gen2 Obsidian Folded
Motion® Tweeter S
Our signature Folded Motion® Tweeter technology utilizes an extremely low-mass diaphragm that "squeezes" air, thus requiring significantly less excursion than a typical 1-inch dome tweeter. Folding the lightweight film into an accordion-like structure increases the playable surface area while keeping the tweeter size relatively compact. With several times greater surface area than typical tweeters, and an extremely lightweight film, this highly efficient combination provides incredible detail and clarity with virtually zero distortion. 
For the Motion® Foundation series we designed our most compact high performance thin film tweeter to date, packing much of the performance found in our Motion® XT, and Motion® series products in a more affordable package. Motion® Foundation redefines what to expect from affordable Hi-Fi speakers, providing an incredible experience that must be heard to believe.

Folded Motion® Waveguide
To further enhance the output and consistency of our latest, and most compact, Gen2 Obsidian Folded Motion® Tweeter S, MartinLogan engineers added the all new Folded Motion® Waveguide to the mix. This waveguide works in tandem with the natural Controlled Dispersion properties of our FMT S to improve the sound consistency across the board, ensuring that every seat gets maximum clarity, especially critical for things like dialogue and vocals.
 The secondary benefit of the Folded Motion® Waveguide is an increase in the Controlled Dispersion coverage area, enhancing the natural output of the tweeter by 10° in all directions for a generous 90° x 90° pattern. This increase still provides all the benefits of Controlled Dispersion but with a slight increase to the coverage area to help better cope with today’s modern listening spaces, giving you more freedom of placement while still providing the sound quality benefits of controlled dispersion.

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 the best performance.

F1
Application
Floorstanding
Frequency Response
41 Hz - 23 kHz
Tweeter Dispersion
90° (vertical) x 90° (horizontal)
Sensitivity
92 dB
Impedance
4 ohms
Crossover Frequency
240 Hz, 3700 Hz
High Frequency Driver
1" (vertical) x 0.94" (horizontal)
Mid Frequency Driver
5.5" (14cm) aluminum cones with
cast aluminum baskets. Non-resonant
asymmetrical chamber format.
Unibody cone construction.
Low Frequency Drivers
3x 5.5" (14cm) aluminum cones with
cast aluminum baskets. Non-resonant
asymmetrical chamber format.
Unibody cone construction.
Cabinet
Rear Ported
Recommended Power Range
15 - 200 watts
Binding Post Inputs
5-way Binding Posts (Non Bi-Wire)
Weight
46.5lbs / 21.09kg
Dimensions (HxWxD)*
41.42" x 8.27" x 14.43"
105.2cm x 21cm x 36.65cm
Finish
Black, Walnut, and Satin White