285-2000 Haut-parleur large bande 70W / 101dB / 8Ω - Supravox
Description

Product Sheet

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.

Frequency response 200 Hz to 20 kHz in the axis

 

Frequency response 200 Hz to 20 kHz at 30°

 

Frequency response 200 Hz to 20 kHz at 60°

 

Frequency response in 1/3 octave

 

Impulse response

 

Waterfall

 

Impedance

Specifications

Specifications
Efficiency: 101.5dB
Bandwidth: 45Hz-7KHz
Impedance:
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