DUO SD

Reduction does not always mean simply doing without. Reduction often means focusing on the essentials. Or simply: concentration. The DUO SD, with its single-drive bass unit, is the essence of what makes a speaker – the perfect introduction to the ‘classic sound’ of the DUO range.

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Highlights

Excellence reinvented.

In the G3 Series, we have taken the bionic horn principle to the extreme. Highly bred horn performance through unrestrained efficiency with a huge transmission range.

107dB Efficiency

New Evolution driver generation for enhanced dynamics and purer sound.

200 mm - Supertweeter

Innovative XT3 tweeter with new long-throw horn and extended supertweeter frequency range with record-low distortion levels.

670 mm spherical wave midrange horn

New improved XM2 DUO Evolution driver with 107dB efficiency and 18 Ohm Omega technology.

XB12 BASS DRIVER

One 12″ XB12 driver with 153mm voice coil and 1.15 Tesla flux density over 480mm voice coil length. Diaphragm composite of long fibre paper and carbon fibre.

Color worlds.

New elegant color and design options for an even more customized configuration of your dream speaker.

Coplanar driver alignment.

In the G3 Series, all drivers are on one axis. This means that the acoustic centers are all on the same plane. The distance of the acoustic centers of the drivers to the listener are therefore always identical. Accordingly, the signals from the respective sources (tweeter, midrange and woofer) arrive at the same time and thus correctly.

Modular technology.

All the electronics are housed in easily replaceable technology modules. So that you can easily expand or upgrade your system even after many years.

Current amplifier.

Patented iTRON current fully active engine for perfect control of membrane vibrations and the ultimate sound.

500 watt bass power amplifier

Integrated power amplifier with 500 watts of amplification power and processor-controlled active filters. New G3 user interface for programming.

One speaker. Two versions.

SEMI-ACTIVE VERSION.

The semi-active version is designed to be used with external hi-fi amplifiers.
With an efficiency of 107dB/W/m and an impedance of 18 ohms, the speaker is extremely easy to operate and ideal for low-power amplifiers. The ideal speaker for the world’s finest high-end amplifiers.

iTRON VERSION.

In the iTRON version, the amplifiers are built into the speaker, eliminating the need for external power amplifiers. To achieve this, we have developed an electronic system that is based on a fundamentally different operating principle to any of the conventional amplifiers on the market. We are the first manufacturer in the world to achieve what was previously thought to be an impossible technological feat. For a sound that is simply heavenly.

iTRON Technology

Modular technology for versatility & timelessness.

Each model has a replaceable technology module that connects to the loudspeaker via a multi-pin power connector. This makes it easy to upgrade the semi-active speaker with iTRON technology at a later date.

It can be upgraded to the most advanced digital technology available at the time, even after many years.

This ensures the sustainability of your investment for generations to come.

Driver technology

We have spent over five years refining, experimenting, improving, measuring, and listening to the new G3 Evolution driver series. The horn and driver have been so perfectly matched that the Evolution Series is a sound-coherent unit of superior quality.

Experience.

We have been working exclusively and intensively with horn technology for over 30 years.

Innovation.

This has given our company a unique wealth of experience and enabled many fundamental innovations.

Engineering.

We use only the best materials. We follow the principles of German quality engineering in development and production.

The perfect crossover.

With our SphericLowCut filter, Airgate technology and PolarizationPlus circuit, we have developed the most innovative technological concepts in our passive crossover.

These are completed with the highest quality components available. Our new NatureCap is an extremely complex capacitor, handmade in Germany. The electrodes are made from precision-rolled aluminium foil, rather than ultra-thin plastic film vaporized with aluminium. The dielectric is a cellulose fibre compound impregnated with organic oils. The NatureCap is approximately 25 times larger than the previous XD series capacitors and is securely mounted to the circuit board using specially manufactured brackets.

XB12 bass driver

RADICAL BASS. RADICAL DRIVE.

For the DUO SD we have developed a completely new drive. Compared to the previous model, we have increased the voice coil from 100mm to 153mm. With this gigantic 6 inch motor structure we achieve absolute top values for the power factor and the power handling, while reducing the power compression.

The motor structure consists of two High Grade magnets magnetised in Europe’s largest 200,000-volt facility. The huge voice coil transfers the power of the permanent magnet with 1.15 Tesla flux density to a voice coil circumference of 480mm. This is an increase of over 50% compared to the previous model!

We use low carbon steel for the pole plates, which are specially designed for the XB12. To ensure high linearity even at maximum diaphragm excursion, the spider has a patented dynamic profile with a progressive surround design. The surround is made of low-loss NBR (Acrylonitrile Butadiene Rubber) for fast and clean transient response.

The diaphragm is made from a composite of long-fibre paper and carbon fibre – extremely strong and torsion resistant for precise pistonic excursion of the diaphragm during transients and decay.

The XB12’s new SingleFrame chassis features robust die-cast aluminium cantilevers, which also enclose the magnet, providing a totally rigid material bond around the moving parts of the motor structure.

The XB12 is our reference in terms of bass. A statement that underlines the uncompromising and unique nature of the G3 Series.

Downloads

DUO SD

PDF documents

DUO SD Brochure

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DUO SD Manual

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iTRON

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Comparison DUO SD & DUO XD

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Reviews

DUO SD (iTRON) - LP (2023, German)

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Test listening

Experience the incomparable Avantgarde sound.

Even the best description is no substitute for the real listening experience with Avantgarde Acoustic loudspeakers. You can try our award-winning horn loudspeakers in several ways:

At the dealer: We have a worldwide dealer network that allows you to hear our speakers at a location near you.
In the showroom: You are welcome to visit us in the Odenwald in Germany and listen to all our products in our own showroom.
Events: We and our dealers regularly take part in events and trade fairs. You can find out about all upcoming dates on our events page.

At the dealer

In the showroom

Showroom

To provide you with a suitable place for this encounter, we have created our showroom. All our loudspeakers are ready for demonstration and can be heard in direct comparison. Operated with classic voltage amplifiers or also gladly via our switching system in comparison with the unique iTRON electronics. You want to experience the Avantgarde sound in our showroom? Then make an appointment now using the contact form below so that we can get in touch with you. Our showroom is available from Monday to Friday, and of course our dealers in your region are also available on every working day.

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What does Avantgarde Acoustic sound like?

Unique and incomparable. Magically captivating. Dynamically three-dimensional. Powerful and intense. Lets you experience music in a new way. Simply perfect – for every style of music.

Let our trade partners surprise you and advise you competently. Since we want to take the time you deserve, we ask you to make an appointment in advance. Our sound experts are looking forward to your visit.

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Mr. Jan Lundberg

+358 401 977000

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DUO SD

Highlights

107dB Efficiency

200 mm - Supertweeter

670 mm spherical wave midrange horn

XB12 BASS DRIVER

Color worlds.

Coplanar driver alignment.

Modular technology.

Current amplifier.

500 watt bass power amplifier

One speaker. Two versions.

Modular technology for versatility & timelessness.

The perfect crossover.

XB12 bass driver

Downloads

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