ATTO: Sound Excellence Redefined...all aluminum enclosure, and it's active! Introducing our latest masterpiece in high-end audio innovation – the ATTO. Building upon the exceptional qualities of our renowned FEMTO, the ATTO stands as a testament to our commitment to pushing the boundaries of audio perfection. Crafted with precision and care, the ATTO embodies the epitome of audio excellence. Constructed from premium 15mm aluminum plates, the ATTO boasts a sturdy and resilient build, ensuring minimal resonance and vibrations. This meticulous craftsmanship guarantees that the cabinet remains virtually free from unwanted distortions, allowing you to enjoy pure, unadulterated sound. The ATTO incorporates the same exceptional components as our DECA and FEMTO, ensuring that the essence of our audio expertise is preserved. From the customized High Frequency Driver to the precision-engineered wave guide, every aspect of the ATTO is a testament to our unwavering dedication to sonic perfection. ATTO is available only as a fully active concept. The electronics implemented include a high quality 2 x 125W amplifier that exceeds by far the requested power of the drivers in use. To manage the drivers probably one of the best DSP platforms has been implemented. It offers state-of-art performance never seen before with COTS crossovers. The SHARC ADSP-21565 is the most powerful DSP crossover ever used in an embedded crossover design, operating at 192kHz with S/N > 123dB. The ATTO, proudly designed and manufactured by Lange Loudspeakers SA in Switzerland, showcases the pinnacle of Swiss engineering excellence. Every detail, from the drive units to the cabinet, reflects our passion for crafting audio equipment that stands the test of time.

Technical features Fully active design, DSP Controlled through the Danville Greywolf platform! Two-Way 60 Hz to 28 kHz frequency range Anti-Resonance Full Aluminum CNC-Machined Enclosure Aluminum low-mid Diaphragm, transitional geometry that achieves metamaterial performance Custom designed high frequency driver Coherent Coverage on Stated Frequency Response Exceptionally broad high frequency projection Subwoofer signal XLR output Suitable applications High-End Home Entertainment Studio Monitoring Home Cinema – THX/Dolby Atmos Technical Description Configuration 2-Way reflex ported System Net weight 11,6 kg Dimensions 250 mm depth, 165 mm width, 250 mm height Finishes Finely sand-blasted, black anodized Drive units 1x Lange 1705-XA LMF Driver / 1 x Lange 1425-8XA HF Driver Frequency response 54 Hz to 28kHz (+/-2,5 dB from reference axis) Sensitivity 87 dB (on axis at 2.00Vrms at 1m) Complimentary Products Lange Loudspeakers TERA Active Subwoofer