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ELAC Floor Standing Speakers รุ่น CONCENTRO M


A benchmark to celebrate 90 years of ELAC achievement.

One look tells you this is no ordinary loudspeaker; at more than 5½–ft tall and weighing more than 300 lbs, Concentro commands attention. Its elliptical cabinet is crafted to the finest furniture-grade perfection and finished in high-gloss white or black epoxy..






Sophisticated aluminum woofers

Through the use of aluminum, resonances that affect the linearity of common paper cones can be placed beyond the driver’s operating frequency range. The motor structure features a large 3-inch diameter voice coil with oversized magnet and a vented pole piece to increase power handling, for accurate reproduction of bass frequencies that are clean, clear and powerful.

Crystal membrane midrange and mid-bass drivers

The eye-catching surface of the crystal membrane is more than just an attractive design feature. The midrange/woofers of the Concentro employs the Crystal Membrane (patent pending) and the design is based on ELAC’s Aluminum-Sandwich AS Technology. The crystal-shaped inverse aluminum dome is joined to the paper cone in a special gluing process to result in the desired sandwich construction. Resembling the surface of a large crystal, the aluminum-foil stamping stiffens the aluminum dome, diminishing resonances and minimizing coloration, while improving power handling and dynamics.

JET 5 tweeter

Delivering true high-definition sound, ELAC’s JET 5 tweeter enthralls with its lightning-fast response and wide dynamic range, offering minimal distortion, lots of headroom and a distinctly wider frequency range than conventional dome tweeters. The ELAC JET tweeter is one of the most legendary tweeters in the industry and has won international praise with its transparent and effortless sound image.

The JET tweeter was developed to perfection on the basis of the famous Air Motion Transformer by loudspeaker pioneer Dr. Oskar Heil. Its operating principle is based on a concertinaed-foil membrane, driven by a strong neodymium magnet. This motor drives the air considerably faster than that of a conventional driver, with gains in higher sensitivity and extraordinary dynamics. Due to many additional design changes, like an improved new neodymium magnet system, even higher efficiency, higher sound pressure levels and frequency response up to 50 kHz was achieved.

The core of the JET tweeter is the folded foil membrane. With a fold width of only 0.84 mm, a major requirement in the JET production is precision. To guarantee repeated accuracy and unchanging quality even with high production capacity, gluing and handling are now executed by two SCARA robots. The folding and fixing of the membrane, however, are executed by hand, since for production steps requiring extreme precision, the manual dexterity of skilled technicians is irreplaceable. Due to continuous improvement, the JET 5 tweeter creates an effortless, airy and resonance-free image up to 50,000 Hz, and with its linear frequency response is ideally suited for the reproduction of hi-res formats.

Complex cabinet structure

The sophisticated cabinet of Concentro eliminates standing waves and resonances, not just through its sheer mass and the dense MDF material from which it is made, but because no parallel surfaces exist to excite such distortion. Additionally, midrange/tweeter, mid-bass and bass drivers are separated acoustically from one another with internal baffles that isolate the individual transducers while also helping to strength the enclosure.


Listeners seeking ultimate treble and bass frequency detail will appreciate two pairs of terminals that offer a convenient solution for bi-wiring or bi-amping the Concentro. These high-quality, gold-plated terminals are suitable for larger cable cross sections as well as for high-quality spade lugs. Unlike so many speakers with awkward terminal locations often feet from the floor, the quartet of posts is generously spaced and located on the flat portion of the Concentro base itself.

Custom base

The base of the Concentro is a complex design machined from a single piece of aluminum that has a matt, clear-anodized -finish. Weighing more than 55 lbs, the base employs four adjustable, high-definition spikes for maximum stability and ideal coupling to hard or soft floor surfaces.


Type 3-Way, bass reflex
Woofer 4 x 220 mm Ø AS, cone
Midrange 1 x 70 / 140 mm Ø, AS XR ring radiator
Tweeter JET 5 Core, modified
Crossover frequency 180 | 2700 Hz
Nominal power handling 300 W
Minimal impedance 2,8 ohms at 380 Hz
Peak power handling 400 W
Frequency range (IEC 268-5) 24 – 50000 Hz
Sensitivity 88 dB/2,83 V/m
Suitable for amplifiers from 4 – 8 ohms
Nominal impedance 4 ohm
Recommended amplifier power 80 – 600 W/channel
Finishes Black High Gloss,White High Gloss
Accessories included bi-wiring set, gloves, tool set
Height 1450 mm with spikes
Width 460 mm with base
Depth 535 mm with base
Weight 90 kg

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