ELAC FS 509 VX-JET
ELAC FS 509 VX-JET floorstanding speaker, fitted with a movable JET tweeter to adapt the sound reproduction to the listening room.
Description
The FS 509 VX-JET is a floorstanding speaker from ELAC, designed for stereo listening in a domestic room. It stands out for its integration of the VX-JET tweeter, an evolution of the brand's well-known JET tweeter, designed to adjust sound diffusion to actual listening conditions.
The technical principle relies on a mechanism located at the rear of the speaker: the assembly formed by the tweeter and the midrange driver can be moved by up to 8 mm. This adjustment makes it possible to modify the propagation of the sound wave, from the midrange register through to the treble, in order to compensate for the influence of the room and the listening distance on sound perception. The aim is to achieve a consistent, precise soundstage regardless of the installation environment.
Aside from this innovation, the speaker retains the brand's fundamentals: carefully developed woofer and midrange drivers, crossover components chosen for their quality, all housed in a wooden cabinet with a finely finished cabinet.
This floorstanding speaker is aimed at hi-fi enthusiasts seeking a stable, precise sound image in various living room configurations, where the listening position or distance from the speakers is not always ideal. The ability to adjust the tweeter makes it a sensible choice for rooms with particular acoustic constraints.
What to check before buying used
Check the sliding mechanism of the tweeter/midrange module at the rear of the cabinet: after years of use, the runner can stick or lose its smoothness, which prevents the 8 mm adjustment claimed by ELAC. Also inspect the cabinetwork (veneer, corners, base) and the woofer surrounds, which can harden or crack over time. Listening across the full frequency range allows you to detect any misalignment or unwanted noise linked to this moving mechanism.
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