Krix Esoterix Altum

An Audiophile Masterpiece, Handcrafted in Australia

For those who demand nothing less than sonic perfection, the Krix Esoterix Altum is the definitive bookshelf loudspeaker — meticulously engineered, hand-built in Australia, and designed to offer a level of musical realism and acoustic refinement that goes far beyond expectations.

From vinyl purists to digital streaming connoisseurs, the Altum is crafted for the true two-channel listener who seeks deep emotional connection to their music. Whether you’re revisiting classic jazz pressings or exploring modern high-resolution recordings, the Altum delivers music with startling presence, precision, and passion.

At the core of the Esoterix Altum is precision acoustic engineering. Every element of this speaker is purpose-built to reproduce audio with stunning accuracy, rich harmonic content, and an immersive sense of space.

Scanspeak Revelator Tweeter – Precision in the High Frequencies

The Esoterix Altum features the legendary 26mm Scanspeak Revelator tweeter, widely regarded as one of the most accurate and musical tweeters available today. It’s chosen for its low distortion, extended frequency response, and incredibly smooth tonal character. This high-frequency driver reveals the subtle textures of recordings — cymbal decay, vocal breath, string harmonics — with breathtaking clarity and natural warmth.

Waveguide Design for Expansive Imaging

To complement the tweeter’s performance, Krix has incorporated a meticulously engineered waveguide, designed to control high-frequency dispersion. This shapes the sound field in a way that creates an exceptionally wide and stable soundstage, far larger than what would be expected from a speaker of this size. Whether you're in the sweet spot or off to the side, the Esoterix Altum maintains a cohesive stereo image, letting you hear the performance as if it were unfolding live in your room.

Powerful, Articulate Midrange and Bass

At the heart of the Esoterix Altum’s midrange and low-end performance is a highly specialised 165mm bass/midrange driver, loaded with advanced transducer technology:

• Cast aluminium basket for structural rigidity and resonance control

• Large neodymium-iron-boron magnet system for high sensitivity and dynamic headroom

• Vented motor design to reduce compression and thermal distortion

• Optimised cone geometry to ensure natural vocal reproduction and tight, controlled bass

This driver is housed in a carefully tuned cabinet that integrates a sizeable double-flared front vent, enhancing low-frequency extension and maintaining linearity under demanding conditions. The result is a deep, articulate bass response that gives the Altum a sonic presence well beyond its modest physical dimensions.

From the richness of an upright bass to the thunder of a kick drum, the Esoterix Altum delivers tight, musical bass that integrates seamlessly with the mid and high frequencies for a coherent full-range sound.

Crafted in South Australia – Built for Audiophiles Around the World

The Esoterix Altum is proudly designed, engineered, and hand-assembled in South Australia, where Krix has been refining loudspeaker craftsmanship for over 45 years. This is not mass production — it’s precision manufacturing by a team that deeply understands acoustics and has supplied speakers for both high-end home systems and some of the world’s most prestigious commercial cinemas.

Each pair of Esoterix Altum speakers is the result of painstaking quality control and acoustic testing, ensuring they not only meet but exceed the expectations of true audio purists.

Design That Sounds and Looks Stunning

Beyond its acoustic performance, the Esoterix Altum is a visual statement of refined craftsmanship. The enclosure features:

• Fully mitred joins for a seamless cabinet design

• Prismatic geometry that adds sculptural form to function

• Hand-finished detailing for a premium feel

This striking form is not just for aesthetics — it also contributes to cabinet rigidity and resonance reduction, further enhancing acoustic clarity.

For those seeking the perfect presentation, Krix offers optional matching stands, designed to complement the Altum’s geometry and ensure optimal listening height and stability.

Custom Finishes & Veneer Matching – Tailored to Your Space

Recognising that every listening space is unique, Krix offers the ability to customise the finish of your Esoterix Altum speakers to suit your aesthetic preferences. Choose from an array of premium finishes and colours to blend seamlessly with your environment — or make them a focal point with a bold design.

For the ultimate level of personalisation, Krix allows customers to supply their own veneer, enabling a perfect match to existing furniture, cabinetry, or architectural detailing. Whether you're integrating the Altum into a finely crafted listening room or a modern open-plan space, these speakers can be finished to reflect your vision.

This level of customisation is rare in the audio world — and is a testament to Krix’s dedication to combining acoustic excellence with architectural integration.

The Pinnacle of Two-Channel Performance

The Krix Esoterix Altum is not just a speaker — it’s a precision instrument for musical enjoyment. Designed for critical listening, it reveals the soul of your favourite recordings with a level of finesse and authority usually reserved for much larger and more expensive loudspeakers.

With its compact form factor, it is ideal for those who want high-end performance without overwhelming their space, and its versatile design makes it equally at home in a dedicated listening room, media lounge, or elegant apartment.

For the Ultimate Sound Experience at Home, Play It Through Krix

When only the best will do — in performance, in build quality, in design — the Krix Esoterix Altum is the speaker that delivers. Combining decades of acoustic expertise, world-class transducers, hand-built enclosures, and the ability to customise every detail, it stands as one of the most compelling offerings in high-end bookshelf loudspeakers today.

Made in Australia. Built for audiophiles. Designed to inspire.