Tempest

Ordering and Pricing

Pricing: $8,600AUD/pair.

To place an order, simply send us an email.

We’re happy to discuss customization options to tailor your order to your needs.

International shipping is available.

A vintage-inspired speaker that combines rich, warm tonality with modern precision all in an elegant, mid-century-styled cabinet.

Cabinet: The cabinet features a dual-layer construction, with a High Density Board substrate and solid timber adhered on top, providing the benefits of enhanced rigidity and acoustic performance. Inside, proprietary IAP dual-panel technology and asymmetrical bracing further reduce vibrations and distortion, ensuring tight bass and clear, dynamic sound signature.

Tweeter: The silk dome tweeter combines a large surround for increased output with reduced distortion, while dual copper caps and neodymium magnets boost efficiency and minimize phase shift. The silk diaphragm enriches the sound with warmth, offering a smooth, traditional tonal profile paired with exceptional clarity.

Front: The Tempest speaker features a striking hammer-tone front baffle, inspired by the classic PA speakers from the live entertainment industry. This design not only evokes a sense of power and presence but also enhances durability, adding a rugged, yet refined touch to the speaker's overall look.

Woofer: The 7½” long throw woofer brings vintage warmth to the sound, while the thin rubber surround and powerful motor system enhance detail and dynamics. Made with Egyptian Papyrus™ fibers, it delivers deep, full bass and smooth mids, offering a refined, clear sound that balances classic character with modern performance.

Warmth and Modern Clarity

The Tempest embodies the essence of 1970s hi-fi, delivering the warmth, depth, and rich mids that defined the golden era of audio. Its velvety tone evokes a sense of nostalgia, where every note feels alive and immersive. Yet, beneath its classic design, it seamlessly integrates modern engineering—precision-tuned crossovers, advanced driver technology, and impeccable time alignment—to reveal unparalleled clarity and detail, offering a listening experience that fuses warmth with precision.

Customization

Each pair of Tempest can be personalized to reflect your personal style and aesthetic. With a variety of timbers available, each speaker can be tailored to complement your space and personal style.

The Tempest speaker features a precision-engineered time correction circuit—an advanced technology rarely found at this price point. By ensuring that both the tweeter and woofer play in perfect sync, it delivers a rich, rhythmic sound with an expansive and immersive soundstage. The result is an incredibly lifelike listening experience, where every note is full of depth, emotion, and clarity. Whether you're enjoying your favorite records or diving into a cinematic score, the Tempest creates a sense of presence that pulls you into the music, making every moment more engaging and true to life.

Time Correction Circuitry

Woofer - Egyptian Papyrus™

The very heart of the Tempest's prowess resides in its remarkable 7.5-inch high-strength woofer, a testament to engineering excellence. Straddling the line between compact and expansive, this woofer effortlessly delivers deep bass while ensuring wide dispersion for a truly encompassing soundstage.

At the core of this exceptional woofer lies the high-force factor motor, meticulously crafted from pure copper and a high-purity neodymium alloy. This blend results in realistic dynamics that this transducer is celebrated for.

The spirit of innovation continues through to the material selection process, exemplified by the choice of Egyptian Papyrus™ as the diaphragm material. Renowned for its ability to imbue lush midrange characteristics.

Tweeter - Silk Dome

The silk dome tweeter is the essential component in achieving this level of audio excellence, producing high-frequency sounds with exceptional clarity and precision. It boasts a large surround dome, dual balanced compression chamber, and dual copper caps, all designed to enhance the realism and depth of the sound.

The high strength neodymium motor system with a non-reflective cast aluminum chamber is another feature that helps minimize distortion and improve dynamics. The shallow flow magnet structure optimizes coupling to the rear chamber, while the CCAW voice coil provides fast transient response while minimizing the moving mass.

The Tempest harmonises the warmth of classic audio with the precision of modern hi-fi technology. This fusion creates a captivating experience that brings out the emotions embedded in music, while preserving the depth of every note.

Specifications

Transducers

Tweeter: 1.25” silk dome with neodymium motor system
Woofer: 7.5” Egyptian Papyrus™ cone with neodymium motor system

Design

2-way standmount speaker
Rear-ported bass reflex enclosure
Dual layer cabinet material with solid wood veneers
Proprietary asymmetrical bracing for vibration control

Acoustic Performance

Max Output: Peak SPL of 103 dB per speaker and 106 dB with two speakers.
With Subwoofer - 100 hertz high pass filter: Peak SPL of 112 dB per speaker and up to 115 dB with two speakers.
Frequency Response: 42 Hz – 30 kHz (average room response: 30 Hz – 30 kHz)
Sensitivity: 87 dB @ 1W/1m
Impedance: 8 ohms
Power Handling: 150W (recommended amplifier: 70 – 500W)

Analogue Crossover

Linkwitz-Riley crossover typology with symmetrical second order acoustical slopes for a warm sound profile
Crossover Frequency: 2.2kHz
Phase Alignment: Proprietary Time Alignment Network (TAN) for accurate timing and phase control
Components:
- Hand wound air-core inductors 12 AWG on main signal paths and 18 AWG on parallel legs
- Audiophile-grade film capacitors
- Precision-matched resistors for accurate driver blending

Terminals

Gold-plated solid copper binding posts
Quad-terminal layout for bi-wiring or bi-amping

Dimensions

Height: 416 mm
Width: 246 mm
Depth: 302 mm

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

Price: $8,600 AUD per pair

Made to Order: Each speaker is meticulously crafted to your exact specifications, ensuring a personalized and exceptional product.

Lead Time: 4-6 weeks

Customization: A variety of premium timber finishes are included. For certain exotic timbers, an additional fee may apply.

International Shipping: Available upon request.