EXC Series
Its objective, to maintain the philosophy of SUPRAVOX, full range drive units and high efficiency. With EXC series (driver unit with excitation), diameter 165 to 380 mm, the audiophile can satisfy its passion. The Supravox team, always in intense activity of research, proposes four evolutions of these traditional references equipped with a powerful electro magnet.


Evolution of the 285 GMF, this loudspeaker offers qualities of reproduction close to the version ferrite (GMF) because they have the same moving element.

On the other hand the oversize engine of excitation makes it possible the 285 to pass the barrier of 100dB SPL. Its magnetic field is adjustable and adaptable of this fact to many enclosures, it requires an external power supply (ideal of 6 to 12V for 5A).


Frequency response 200 Hz to 20 kHz in the axis 9V


Frequency response 200 Hz to 20 kHz at 30° 9V


Frequency response 200 Hz to 20 kHz at 60° 9V


Frequency response in 1/3 octave 9V


Impulse response 9V


Waterfall 9V


Impedance 9V


Efiiciency 1 W/ 1 m at Fs : 93 – 102dB
Bandwidth: 50Hz-7KHz
Power: 70W
Suspension: Paper
Resonance frequency: 50 Hz
Linear excursion: +/- 4mm
Magnetic field: 0 to 1.2 T
Diameter HP: 290/307mm
Frame thickness: Alu 8mm
Diameter fixation: 294mm
Diameter drilling holes: 280mm
Depth HP: 180mm
Alimentation: 0 to 12 V CC.