FEMTO
Embedded Files
Introducing the FEMTO Bookshelf Speaker: Precision Engineering in Audio Excellence
The FEMTO Bookshelf Speaker is a remarkable embodiment of high-fidelity sound and cutting-edge design, expertly crafted from a solid aluminum block measuring 254 mm in depth, 195 mm in width, and 270 mm in height. This compact yet powerful speaker is engineered to deliver an immersive audio experience that will satisfy even the most discerning audiophiles.
At the heart of the FEMTO's design is a meticulously CNC-milled slightly exponential horn located at the front. This horn is specifically designed to enhance acoustic performance by directing sound energy in a controlled manner, optimizing its asymmetrical vertical coverage. It effectively covers the 1200 Hz to 28 kHz frequency spectrum, providing a smooth transition from mid to high frequencies. This unique design minimizes room reflections and maximizes clarity, making it especially beneficial in highly reverberant rooms. The precision milling process ensures that the horn's geometry is optimized for superior sound projection, allowing it to deliver crisp highs and rich mid-range frequencies with remarkable accuracy.
Incorporating the same high-quality components as our ATTO model, the FEMTO features a customized high-frequency driver. These elements work in harmony to create a seamless soundstage with exceptional detail and accuracy.
Constructed with our commitment to quality, the FEMTO's aluminum cabinet minimizes unwanted vibrations and resonances, allowing for pure, unadulterated sound reproduction. The result is a bookshelf speaker that not only looks stunning but also offers unparalleled performance
Proudly designed and manufactured by Lange Loudspeakers SA in Switzerland, the FEMTO stands as a testament to our dedication to audio excellence. Whether you’re listening to music or enjoying cinematic soundscapes, the FEMTO Bookshelf Speaker will elevate your audio experience to new heights.
Technical features
Two-Way 80 Hz to 28 kHz frequency range
Anti-Resonance Full Aluminum CNC-Machined Enclosure
Aluminum Diaphragm, optimized geometry that achieves metamaterial performance
Custom designed high frequency driver
Coherent Coverage on Stated Frequency Response
Offers 70°H x 50°V directivity control over an important part of the spectrum
Suitable applications
High-End Home Entertainment
Studio Monitoring
Home Cinema – THX/Dolby Atmos
Technical Description
Configuration 2-Way Sealed Box System
Recommended amplifier power 50W – 200W into 8Ω on unclipped program.
Net weight 19,4 kg
Dimensions 254 mm depth, 195 mm width, 270 mm height
Finishes Finely sand-blasted, black anodized or RAL painted.
Drive units 1x Lange 1705-4A LMF Driver / 1 x Lange 1425-8A HF Driver
Frequency range 80Hz to 28kHz
Frequency response 100 Hz to 28kHz (+/-2,5 dB from reference axis)
Sensitivity 89 dB (on axis at 2.00Vrms at 1m)
Harmonic distortion
2nd and 3rd harmonics (1W-1mt) <0.7% 100Hz – 20kHz
Complimentary Products Lange Loudspeakers TERA Active Subwoofer
High-Performance Compression Driver in the FEMTO
The FEMTO features an exceptional compression driver that delivers an impressive frequency response, ranging from 1200 Hz to 28 kHz. This driver utilizes an ultra-light magnesium dome and is equipped with a 3-channel circumferential phase plug, specifically engineered for optimal performance within our loudspeaker systems.
With a magnetic induction of 15,000 gauss and a 0.5 mm Xmax, this driver ensures high efficiency and low distortion, making it ideal for audiophiles seeking clarity and detail in their sound reproduction. The relatively large horn integrated into the FEMTO design enhances controlled coverage, providing precise sound dispersion even at frequencies beyond the human hearing threshold.
This combination of advanced materials and innovative engineering makes the FEMTO's compression driver a key component in achieving a superior audio experience, ensuring that every note is reproduced with accuracy and fidelity.
FEMTO: Precision-Crafted High-Fidelity Speaker
Imagine a speaker meticulously carved from a single block of 6030 aluminum, seamlessly integrating a CNC-machined horn into its geometry. This is the FEMTO—a masterpiece of engineering and craftsmanship where every detail is sculpted to perfection.
The advanced CNC machining process ensures unparalleled precision, allowing for intricate designs that enhance both aesthetic appeal and acoustic performance. By eliminating unnecessary seams and joints, the FEMTO achieves superior structural integrity, resulting in minimal resonance and distortion during playback.
This innovative approach not only highlights the beauty of the aluminum but also maximizes the speaker's sound quality, delivering a rich and immersive listening experience. With its unique design, the FEMTO stands as a testament to our commitment to high-end audio excellence.
All key elements have been designed internally
Our low-mid frequency driver is a pinnacle of engineering, featuring a modern voice coil constructed with two-layer copper-clad aluminum wire for enhanced conductivity and efficiency. The driver is equipped with a high-performance slug-type magnet made from N52 grade neodymium, ensuring optimal magnetic strength and efficiency.
The one-piece oxidized aluminum diaphragm is designed with a transitional geometry, enhancing frequency response and minimizing distortion. Coupled with a nitrile suspension, these elements work in harmony to significantly boost overall performance while reducing variations in loudspeaker driver performance.
Every key component has been meticulously designed and manufactured in-house to ensure the highest quality standards, reflecting our commitment to audio excellence..
Page updated
Report abuse