Compared to larger speakers, the smaller internal volume of compact speakers makes it significantly more challenging to generate powerful and precise bass. Traditional speakers must either sacrifice bass performance or delicate design. We believe that sound and aesthetics should not be contradictions. Therefore, we have further improved our proven Transmissionline technology for the new Criterion series: a delicately folded and precisely calculated multiresonator structure on the inner back of the speaker creates standing waves that maximize sound pressure in the low-frequency range. The energy acting on the high-performance bass drivers is effectively maximized thanks to this technology, rather than being lost. To prevent the energy from affecting the drivers as unwanted interference, airtight chambers protect the sensitive high-midrange combination.

As the second T+A speaker, the Criterion series follows our new design language of "Classic Modernity." A timeless classical framework sets the basis for the consistent application of modern ideas, excitingly reinterpreting details from this framework. Its distinctly curved housing is inspired by the appearance of the Art déco style. This excitingly different shape visually elongates the Criterion speakers and gives them a sculptural presence in the room that cleverly disguises their true dimensions. The timeless elegant finishes are built up in sophisticated multilayer processes. The complexity of the Multi-Resonator internal construction is on par with the external design: from an intricately milled transmission line chamber system with its own airtight compartments for the high- and midrange drivers to structure-borne sound-suppressing internal walls, the Criterion symbolizes our commitment to thoughtful perfection, solidity, and durability both internally and externally.

For 40 years, the natural and unadulterated reproduction of music has driven us: the vision behind the music should be neither augmented nor diminshed by a T+A system. The entire mid-high-frequency range of the Criterion speakers is transmitted by a system of two midrange drivers concentrically placed around a magnesium tweeter. This system, called Symmetric Directivity by us, was first used in the globally celebrated Solitaire S 430 and now brings the remarkably precisely defined radiation behavior of the Solitaire speakers to a new price range. By using two 120 mm or 150 mm Star-Stabilizer midrange drivers, the displacement of each individual driver is cut by half, the distortion factor is reduced, and linearity hence increased. The precisely calculated control of the midrange drivers and the 25 mm magnesium tweeter by the FSR crossovers creates a sound field whose energy is most pronounced in the centre of the listening area. Harmful radiations in the direction of the ceilings and floors are thus reduced before they can develop into disturbing room influences and reflections. As a result, the Symmetric Directivity System creates a broad stage with real depth gradation and allows the precise localization of all voices and instruments.

While the sound waves of lower bass frequencies pose significant demands on the structural integrity of the enclosure, the often only a few millimetres or centimetres short sound waves in the high-frequency range require a compensation of a completely different kind. Even tiny irregularities such as those caused by screwed chassis cradles or the smallest edges on the baffle could affect the undisturbed radiation of these frequencies, causing subtle yet audible colorations in the high-frequency reproduction.
The T+A OrganicBaffle Design represents our consistently scientific solution to this problem. In all Criterion speakers, the baffles are anchored internally without external screws or fasteners. Their shape itself has been meticulously calculated to prevent any potential disturbances in sound radiation from the outset, instead of having to minimize them after the fact. This innovative design ensures accurate mid-high-frequency reproduction without any impairments leading to the purest form of sound experience.