The DUO combines all of Avantgarde Acoustic´s technological and creative potential, resulting in a most sophisticated two way horn system.

With its enlarged 670 mm midrange horn, a driver system of exclusive quality and precise integration of all components, this system offers unrivaled performance across the sound spectrum. The DUO with 8 ohm is already a “classic” among 2-way horn systems.

Now the DUO takes the next step introducing the DUO OMEGA system. The DUO OMEGA uses the same drivers developed for our flagship META PRIMO model. Furthermore they incorporate as well the new CPC crossover technology. The technology is retrofitable, so customers can easily upgrade their existing 8 ohm DUO systems.

"The OMEGA drivers are fantastic. I did not expect such an improvement to my 8 ohm DUO! They are much more detailed, but yet even more involving musically. The entire speaker seems much more alive and dynamic“ Jim Smith, USA.

The DUO OMEGA is a 2-way spherical hornspeaker system, equipped with the SUB225 subwoofer for the bass range below 170 hz. Its hybrid concept with self-powered bass and the very high sensitivity (108 dB/W/ m) makes it easy to drive with any amplifier and delivers outstanding dynamics and resolution.

THE MIDRANGE DRIVER

“Mostly people focus on treble and bass and completely forget about the mids. But when we design a new speaker we always start with the midrange. The midrange is the core of any system. If you get this right you have practically done most of the job” explains Matthias Ruff, technical designer of Avantgarde Acoustic™.

The DUO OMEGA offers the same technology as Avantgarde´s flagship model TRIO. It features a sophisticated M2 omega driver with high impedance technology loading a 670 mm spherical midrange. “First we had to get the performance of the smaller horn to the TRIO level. We experimented with very high impedance voice coils. But the sensitivity was too low”.

During the design process of the M2 omega midrange driver the copper in the pole-piece got eliminated by the designers. “We managed to increase the effective magnetic flow in the air-gap of the driver by eliminating the usual copper inlay of the pole-piece. The roll-off at higher frequencies caused by the higher inductivity of the voice coil and a specially designed cellulose dome was than set to the exact crossover point of the tweeter.”

Furthermore Avantgarde Acoustic™ added a powerful ALNICO magnet to this new M2 omega development. This precious magnet material generates a powerful magnetic field which homogeneously controls the movement of the voice coil.

“I am very proud that we achieved the ambitious task of getting the midrange driver close to the TRIO performance. We got the sensitivity just perfect. But when we incorporated our new cone with VDE technology I was simply blown away. Smooth, revealing with no artefacts” raves the designer.

The midrange cone of the DUO OMEGA is coated with trillions of tiny microfibres generating a “VELOURS DAMPING EFFECT”. According to the manufacturer, this incrementally small fur of the VDE technology cone effectively works in two ways. First it reduces partial resonances of the cone. “It is similar to a waterbed with only one cham M2 OMEGA MIDRANGE DRIVER ber. Once you move it takes years till the movement of the water comes to a halt. Using multiple chambers in waterbeds will immediately calm any motion” explains Matthias. “Same with our VDE drivers. Any movement of the cone itself is dampened by these microscopic fibres”. The second benefit of the VDE technology is that it effectively absorbs high frequency distortions. “If your listening room sounds hard you will probably use a carpet or hang up a curtain. That´s how simple VDE works. The irregular surface of the cone just eats up unwanted harmonic distortions.”

The generously dimensioned ALNICO magnetic structure of the 170 mm (7 in) cone, provides an extended efficiency as well as offering very high power handling at long excursions. This way the M2 omega has a very low cut-off frequency of 170 hz which allows for an integration with the subwoofer without any passive crossovers. The design of the dome ensures the sound waves entering the midrange horn SH6704 are in phase and cover the required extended bandwidth. The CDC system features a controlled roll-off at 2,000 Hz and consequently allows the operation of the M2 omega in full range mode, without any degrading filter components in the signal path.

“When you connect your Avantgarde speaker the voice coil of the midrange driver is directly linked to your amp. No phase shifting components in between, only the speaker cable! You can´t get an any better direct connection.” The M2 omega offers a neutral, silky and contoured sound reproduction across its entire frequency range. Vocals, instruments and complex signals are reproduced with speed and ease that will let you forget that you are listening to a recording.

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Customer's Installations of Avantgarde's speakers.