Supravox
285-2000 mk2 Bass-midrange speaker 45W / 101.5dB / 8 Ohms
285-2000 mk2 Bass-midrange speaker 45W / 101.5dB / 8 Ohms
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2000 Series
The SUPRAVOX loudspeakers of the 2000 series are equipped with Alnico motors.
Derived from the 285 GMF, the 285-2000 uses the same cone with a more powerful motor. The new Alnico motor, developed under FEA software, changes from a ring-type configuration to a one-kilogram central core of Alnico 5. This arrangement makes it possible to capture 100% of the energy of the magnet. The magnetic field reaches 1.4T in the air gap of 8mm.
The new pole profile brings better symmetry to the Bl(x) curve, with 3.5mm excursion, and generates less distortion. This new magnetic assembly, powerful but compact, releases the rear wave of the loudspeaker. The moving parts being unchanged, this driver keeps all the subjective qualities of the 285 GMF: balance, transparency, liveliness of the low-medium with added subtleties coming from the Alnico motor.
TECHNICAL CHARACTERISTICS
Below are the 2019 parameters, measured using AES2-1984-r2003.
| Sensitivity (2.83V/1m): | 101,7dB |
| Sensitivity (1W/1m): | 100,8dB |
| Bandwidth : | 45Hz-7KHz |
| Impedance: | 8 Ohms |
| power max. RMS : | 35 W. |
| Suspension : | 3 ply paper |
| Linear excursion: | +/- 3,5 mm |
| Magnet : | Alnico V |
| Magnetic field : | 1,4 T |
| HP diameter: | 294/310mm |
| Basket: | Aluminum |
| Mounting hole distance: | 294mm |
| Enclosure drilling diameter: | 275mm |
| HP depth: | 177mm |
| Fs : | 47 Hz |
| Re : | 6.5 Ohms |
| And 1 kHz : | 0,71 mH |
| Qts : | 0,21 |
| Qe: | 0,22 |
| Qm : | 7,3 |
| Vas: | 159 L |
| Bl : | 13,26 |
| Mms : | 20 g |
| Sd : | 442,6 cm² |
High-Precision Craftsmanship: Made in France
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The Artisan's Touch
At the heart of our factory on the outskirts of Paris, each voice coil is hand-wound with micrometric tension. We use ultra-light supports and high-purity conductors to minimize moving mass. It is this extreme lightness that gives our loudspeakers their legendary responsiveness and their ability to reveal the finest details.
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The Hand and the Spirit
Each loudspeaker is a unique piece, assembled by craftsmen whose expertise has been passed down for decades. The precision of the centering and the tension of the suspensions are adjusted by touch, a sensitivity that no machine can replicate. This artisanal assembly guarantees perfect fluidity of movement and exceptional longevity.
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Exponential Paper Cones
Our cones are made from a proprietary recipe of long-fiber paper, manually processed to achieve an ideal balance of rigidity and damping. The exponential profile, pioneered by Supravox, ensures homogeneous sound diffusion. The result is an organic timbre and strikingly realistic vocal presence.
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Magnetic Alchemy
Beyond the simple magnet, we master energy. In our factory on the outskirts of Paris, we forge Alnico 5 motors and Field Coil systems capable of saturating the air gap with absolute precision. This controlled power offers lightning-fast dynamics and almost zero distortion, hallmarks of Supravox's high sensitivity.
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Signal Purity
Perfection often comes from subtraction. By designing full-range loudspeakers capable of covering most of the spectrum, we eliminate the need for crossover filters. The signal travels directly from your amplifier to the cone, preserving perfect phase coherence and a holographic soundstage of complete transparency.
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Tested for Eternity
Each unit leaving our workshops undergoes a rigorous testing protocol: frequency analysis, impedance measurement, and tactile inspection of the excursion. But the final verdict belongs to the human ear. Each loudspeaker is validated by our technicians, ensuring that your investment will remain an exceptional instrument for decades to come.
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