Alto
A sleek, modern speaker that delivers exceptional clarity and powerful bass, all in a compact cabinet.
Dual Radiators: The dual passive radiators redefine bass performance. Engineered for precision, they deliver deep, controlled low-end while eradicating port noise and resonant distortion. This innovative design ensures a pure, distortion-free sound—crisp, clear, and powerful, even at high excursions.
Waveguide: The shallow waveguide is designed to optimize dispersion and deliver a natural, immersive in-room sound. Its carefully calibrated depth and narrow throat provide gentle horn loading, allowing the tweeter to cross over at lower frequencies while minimizing distortion for unparalleled clarity.
Cabinet: The hand crafted cabinet is constructed from dual-layer High Density Board and heavily braced throughout, it effectively dampens the immense forces generated by the woofer, ensuring a pristine, distortion-free sound. Wrapped in a premium timber veneer of your choice, with Oak pictured, each cabinet blends performance and elegance, elevating both acoustics and aesthetics.
Tweeter: The Beryllium dome tweeter represents a breakthrough in high-frequency performance, designed minimize resonance, extending high frequencies with remarkable accuracy, while dual balanced compression chambers enhance dynamics for lifelike sound reproduction.
Woofer: The Purifi 6.5” woofer in the Alto is engineering mastery in a compact form. With unparalleled control over distortion, it delivers bass depth and midrange clarity that rivals the performance of much larger drivers. Precision-engineered for a dynamic, refined sound, it exemplifies high-performance audio design—powerful, yet effortlessly elegant..
Compact Form
The Alto has been designed for those looking for a compact speaker but do not want to compromise on performance.
It was once believed that small loudspeakers could not convey the true emotions of music. However, with groundbreaking research in transducer technology, the Alto debunks that claim, delivering an unparalleled audio experience in a compact form.
Craftsmanship
The Alto is crafted with precision and care, featuring hand-selected timbers and premium finishes that blend modern elegance with enduring quality.
Every detail, from the refined contours to the sleek aluminum transducers, is designed to complement its exceptional performance.
This is more than a speaker—it’s a statement piece for spaces where innovation meets sophistication, where sound and style converge.
Small but Powerful
The Alto is a true turn-key audio solution, integrating NCore amplifiers directly into the design. This eliminates the need for large, external amplifiers, offering a streamlined, all-in-one system without sacrificing power or performance.
Ncore Amplifiers
With a staggering 350 watts of power, the Alto delivers unparalleled performance in a sleek, compact package.
Featuring some of the lowest distortion amplifiers ever engineered, it offers unmatched efficiency and pristine clarity, pushing boundaries of sound to deliver a reference-quality experience that exceeds the expectations of the most discerning audiophiles.
Signal Processing
Equipped with cutting-edge DSP technology, the Alto produces an extraordinarily lifelike sound. Its advanced time correction processing eradicates time smearing, offering immaculate coherence that is often unattainable in conventional designs.
Connectivity
The Alto seamlessly integrates with your system through a range of inputs, including analog XLR, RCA, and a suite of digital options including optical, coaxial, and AES/EBU. With automatic source detection and intelligent power management, it effortlessly powers on and off, providing ease of use without compromising on performance.
Extended Bass Output
Equipped with twin Purifi 6.5 inch passive radiators, the Alto extends low-frequency response while eliminating the issues found in ported designs, such as port noise and high frequency resonances. These radiators combine the tight bass of closed boxes with the extended range of ported designs, offering an anechoic low-frequency response that reaches -3dB at 37Hz, and an in-room response that dips well below 30Hz. This ensures studio grade bass which is rich and powerful and all without the need for a subwoofer.
Customization and Personalization
Each pair of Alto's can be personalized to reflect your personal style and aesthetic. With a variety of custom timber finishes and paints available, each speaker can be tailored to complement your space, whether you prefer a sleek modern look or a more classic, timeless design.
We invite you to contact us to explore the range of finish and trim options, ensuring that the Alto seamlessly integrates with your unique interior.
Beryllium Tweeter
The Alto’s tweeter and waveguide are a fusion of cutting-edge engineering and meticulous craftsmanship. The solid aluminum waveguide, with its precise geometry, ensures controlled directivity, guiding the sound smoothly to the listener.
Paired with the beryllium dome tweeter, this system provides exceptional high-frequency extension, delivering crisp, lifelike highs without the nasty break nodes often found in conventional tweeters.
The waveguide’s shallow design optimizes dispersion, creating a natural, immersive soundstage. Its refined shape minimizes unwanted reflections, allowing for a pure and clear representation of the tweeter’s performance, while maintaining a balanced, coherent sound across the room. Together, they form an ideal combination of form and function for the most discerning listeners.
Purifi Woofer
The Purifi woofer, driven by the groundbreaking USHINDI technology, achieves a remarkable balance between power and clarity, with distortion levels so low they are imperceptible to the human ear.
The combination of the NeutralSurround suspension and PureDrive motor system guarantees a clean, articulate response across the frequency spectrum.
This highly refined engineering results in a transducer that offers unmatched precision and clarity, even at the highest volumes.
Specifications
Transducers
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6.5-Inch Woofer: Constructed with a rigid, pressed aluminum cone for excellent midrange accuracy and controlled bass performance.
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Beryllium Tweeter: Features a 29mm lightweight beryllium diaphragm, providing superior high-frequency clarity and extended range for crisp, detailed treble.
Power and Performance
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Max Output: Peak SPL of 106 dB per speaker and up to 109 dB with two speakers.
Amplification
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Amplification: Each speaker is powered by Hypex Ncore amplification for ultra-low noise and distortion. 250watts on woofer and 100 watts on tweeter.
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Crossover: Advanced filtering ensures seamless power response and exceptional detail retrieval.
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Analog Inputs: Balanced XLR and unbalanced RCA inputs with through connections.
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Digital Inputs: AES, S/PDIF, Optical TosLink for versatile connectivity.
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Volume control and remote options are available upon request.
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Three sounds profiles - Audiophile, Bass Boost and Movie Mode.
Digital Signal Processing (DSP)
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Time Alignment: Ensures precise step response, maintaining perfect phase coherence and transient accuracy across all frequencies.
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Third-Order Acoustic Filters: Smooth, natural transitions for an immersive and balanced sound experience.
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Optimized Crossover at 1.7kHz: Seamlessly blends woofer and tweeter for a cohesive, in-room sound with exceptional clarity.
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Subsonic Cutoff: Eliminates turntable rumble and low-frequency noise, preserving clean, undistorted bass.
Specifications
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Sensitivity: 83.5 dB (2.83V/1m).
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Impedance: 4 ohms.
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Dimensions: H 446mm ● W 251mm ● D 336mm
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Weight: 18.5 kg per loudspeaker.
Handmade in Australia
Atlas Gouverneur is a master craftsman with over 20 years of experience across multiple mediums, from wood and metal to electronics. Operating from a small factory in Sydney, Atlas leads a dedicated team that handcrafts each Alto is made to order, ensuring unmatched quality and precision.
Ordering and Pricing
Please email for pricing.
Made to Order: Each speaker is meticulously crafted to your exact specifications, ensuring a personalized and exceptional product.
Lead Time: 6-8 weeks
Customization: A variety of premium timber finishes are included. For certain exotic veneers, an additional fee may apply.
International Shipping: Available upon request.