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• TT180AS-XR: doua difuzoare bass cu membrane sandwich hartie-aluminiu "Crystal"
• X-JET: sistem de difuzoare midrange-tweeter concentrice si coplanare - midrange inelar (honeycomb aluminiu) si tweeter JET III

ELAC FS 210 CE: Premiere

ELAC's new FS 210 CE is equipped with numerous special technical features such as ELAC's new crystal membranes in the bass range and the widely acknowledged mid-range / treble coaxial technology, the quality of which is praised in tests worldwide. Manufactured in Kiel, the FS 210 CE is a model of high-quality German workmanship.

The sensation of experiencing this authentic, fascinating speaker affects not only the sense of hearing. The majestic speaker towers also make a striking visual impression.

X-JET coaxial and coplanar Midrange-Treble Driver System

The new X-JET is a unique combination of a flat (aluminium honeycomb membrane) ring radiator midrange driver and a concentrically arranged JET tweeter.

By this the X-JET design realizes the vision of an acoustic point source! This facilitates an optimized acoustic power response and results in a homogeneous and very wide sound dispersion angle (s.a. the graphics below) which provides for a new kind of relaxed but very precise and detailed reproduction.

X-JET coaxial system versus conventional 2 way system tridimensional pattern comparison - 2756 Hz sound wave dispersion

The ultra lightweight honeycomb diaphragm provides a reduced stray magnetic field combined with a strong neodymium drive. The system is driven by a 78 mm moving coil. High efficiency is achieved using coppered aluminium flat wire, edgewise-wound, on a ventilated Kapton® bobbin.

The new X-JET system yields a upper cut-off frequency of 50 kHz. This makes the loudspeaker an ideal component for the reproduction of DVD-A and SACD.

Bass Unit

TT 180 AS-XR bass used in: BS 244, FS 249, FS 210 CE.

All woofers and midrange drivers of the 240 series contain the new "Crystal Membrane" (patent pending) and their design is based on the well-known "Aluminium-Sandwich AS Technology" which was developed by ELAC a couple of years ago. The crystal-shaped inverse aluminium dome is joined to the paper cone in a special glueing process resulting the desired sandwich construction.

The stamping of the aluminium foil looks like the surface of a large crystal, this is where the term "Crystal Membrane" come from. This stamping stiffens the aluminium dome considerably which diminishes the membrane-internal resonances resulting in less sound coloration and additionally improves the large signal behaviour noticeably.
The voice coil is not only - like usually - joined to the neck of the paper cone but also to the bottom of the aluminium dome. This design results in the expansion of the transmission range of the respective woofers or midrange drivers by nearly an octave. Therefore the abbreviation "XR" (eXtended Range) has been introduced.

Due to the specially wide double asymmetrical ('DAS') rubber surround, ELAC's TT 180 woofer can handle up to ±15mm long stroke. This provides maximum level supply and mellow low bass. For a driver this size, such a large displacement represent a unique engineering achievemen.