Description
2000 Series
Driver units SUPRAVOX series 2000 are been driven by engine alnico .
Derived from 285 GMF 285-2000 take back the membrane with a more powerful engine. The new Alnico engine, developed under FEA software, switches from an annular type configuration to a central core of one kilogram 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 gap of 8mm.
The new pole profile gives a better symmetry of the Bl (x) curve, with a 3.5mm excursion, and generates less distortion. This powerful yet compact magnetic unit releases the backwash of the speaker. The mobile crew being unchanged, we find all the subjective qualities of the 285-2000: balance, transparency, vivacity of the low-medium.
Specifications
Specifications
| Efficiency: | 101.5dB |
| Bandwidth: | 45Hz-7KHz |
| Impedance: | 8Ω |
| Power: | 45W |
| Suspension: | 3 paper pleats |
| Linear excursion: | 3.5mm |
| Magnet Alnico : | 3.5 Kg |
| Magnetic field: | 1.4 T |
| Diameter HP: | 290/307mm |
| Frame thickness: | Alu 8mm |
| Diameter fixation: | 24mm |
| Diameter drilling holes: | 280mm |
| Depth HP: | 180mm |
| Fs : | 45Hz |
| Re : | 6.5Ω |
| Qts : | 0.2 |
| Qe : | 0.22 |
| Qm : | 6 |
| Vas : | 200 L |
| Bl : | 12 |
| Cms : | 0.6 |
| Mms : | 18.5 g |
| Sd : | 471 cm2 |
