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Concentro S 507
The Concentro S Floorstanding Speaker
Concentro is synonymous with the ultimate in workmanship, design, and sound. The Concentro S 507 retains all the features and benefits of the larger Concentro loudspeakers but creates its own unique visual impact.
Its exterior is a perfect symbiosis of the extravagant design of the Concentro and the clean lines of the VELA Series. The trapezoid basic shape, wraparound baffle, and gently angled cabinet combine to convey a natural, low-key appearance. The striking bottom assembly achieves a ‘high-heel’ effect, imparting a sense of elegance and stability. Incidentally, it also guarantees an exceptionally sound footing.
The innovative step X-JET features a concentric chassis built around a new JET 5c tweeter and a midrange driver with an aluminum membrane. The patented technology uses exchangeable DCRs (Directivity Control Ring) to tailor the directional characteristics in the mid-frequency range to conditions in the listening area. The different DCRs (three aluminum DCRs are included as standard) are used to influence the relationship between direct and diffuse sound in the listening area. Four powerful side-firing long-throw woofers ensure effortless performance. The special ICD configuration (Impluse Compensated Design) guarantees contoured bass reproduction free of any coloration due to unwanted mechanical vibrations. Put simply, the Concentro S 507 will satisfy the most discerning listeners by reproducing audio signals to perfection across the entire frequency spectrum and at all volumes.
Height: 1220mm with Spikes/Washer
Width: 270mm with Spikes/Washer
Depth: 380mm with Spikes/Washer
Weight: 37 kg
Type: 4-Way, Bass Reflex
Woofer: 4 x 150mm AS Cone
Low-Midrange: 1 x 180mm AS-XR Cone
High-Midrange: 1×50|130mm AL Cone
Tweeter: 1 x Jet 5c
Crossover Frequency: 120 | 400 | 2600 Hz
Nominal power handling: 240 Watts
Minimum Impedance: 3.0 Ohms @ 360 Hz
Peak Power Handling: 300 Watts
Frequency Range: 24 – 50,000 Hz
Sensitivity: 88 dB / 2.83V/m
Suitable for Amplifiers: 4 – 8 ohms
Nominal Impedance: 4 Ohms
Recommended amplifier power: 60 – 500 Watts per channel
Finishes: Black High Gloss, White High Gloss
Accessories Included: Bi-Wiring Set, Gloves, Spike Set, Washer
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, or to specification in any color in between. The Concentro cannot be mistaken for any other speaker, with a complex base machined from a single block of aluminum and weighing more than 55 pounds. Integral oval side panels of precious wood, carbon fiber or leather surround a pair of side-firing 250mm woofers on either side of the enclosure. These newly-developed units feature smooth, stiff aluminum-sandwich diaphragms, and fire in a push-push/pull-pull configuration that delivers maximum energy and accuracy, down to the lowest octave. The back of the cabinet features twin ports for the bass drivers. The sophisticated front baffle features curves that allow optimum propagation and dispersion of sound waves from the two drivers. On top is a dual-concentric 127mm midrange with JET-5 tweeter at its acoustic center. Beneath this is a front-firing 177mm crystal membrane mid-woofer. The whole results in a near point-source presentation of the sound source, micro-accuracy and flawless, pinpoint imaging. Meanwhile, dynamic range is nearly unlimited, from the most nuanced detail to the most powerful crescendo. ELAC Concentro. Listen and embark upon a whole new era in The Life of Sound.
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.
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.
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