OBJECTIVE: REDUCE DIRECTIONALITY AND DISTORTION
Focal has updated its famous inverted dome tweeter with two significant mechanical advances: a new "M"-shaped dome, and a new surround, like the tweeter used on the SM6 and SM9.
THE INVERTED DOME'S "M" SHAPE BRINGS TWO DECISIVE ADVANTAGES
- Directionality is even lower than that of the inverted dome tweeter, for an even more flexible listening position.
- Mechanically speaking, the "M" shape also brings a significant gain in dome rigidity, further reducing distortion.
At the same time, the Poron® surround has the effect of sharply linearizing the response curve below 6 kHz, favoring coupling to the woofer.
The magnet construction has also been optimized, with the use of a Kapton®-supported coil to greatly reduce eddy currents and, by extension, distortion.
Last but not least, the horn housing the tweeter has been designed to offer the same horizontal and vertical directionality.
Focal products using this technology
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REMOTE AMPLIFIER IN CURRENT MODE
The most transparent and natural
Since main monitors are frequently soffit-mounted, these require external electronics for this application. Focal engineers have therefore developed an amplification system combining a class H with a current mode. By controlling the current (instead of the voltage), it is possible to directly control the force submitted to the membrane and eliminate any unwanted artefacts. Combined with analogue filtering and exceptional drivers, this amplification achieves the lowest THD ever measured in an anechoic chamber.
"M" profile Béryllium Tweeter
Rigidity and Purity
Patented by Focal, the pure beryllium ‘M’ profile tweeter combines rigidity, lightness and damping for exceptional high-frequency reproduction. The ‘M’ membrane is the result of many years of research and expertise. Made in a single piece, it improves sound dispersion, reduces distortion and ensures optimum power handling.
Infinite Horn Loading
High-definition sound
For the Beryllium tweeter to deliver all its finesse, it would need an almost infinite volume. Sopra's need for compactness meant that the maximum volume of the cabinet had to be used for the bass. Exploring new ways of loading the tweeter led us to imagine the IHL infinite-load horn. The IHL (Infinite Horn Loading) system enables the Beryllium tweeter to be loaded while respecting the compactness of the loudspeaker. The rear wave is gently and progressively absorbed to avoid distortion. The result is maximum definition.
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