Product sheet

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.


It has a moving element and a frequency response identical to 165-2000. Its advantage is the possibility of adjustment of these parameters thanks to a powerful electromagnetic engine. Adaptable of this fact to many enclosures, it requires an external power.

Frequency response in 1/3 octaves, dBspl/1m/2.83V at 0° and 30°.




Time depreciation.




Sensitivity curve.








Below are the 2019 parameters, measured according to AES2-1984-r2003.

Efficiency (2,83V/1m): 96,7dB
Efficiency (1W/1m): 93,7 dB
Bandwidth: 60Hz-20KHz
Impedance: 6 Ω
Power: 35 W
Suspension: 5 paper pleats
Linear excursion: +/- 2,9 mm
Magnet: Alnico V
Magnetic field: 1,7 T
Diameter HP: 185 mm
Frame thickness : Aluminium
Diameter fixation : 175 mm
Diameter drilling holes:: 156mm
Depth HP: 128mm
Fs: 76,5 Hz
Re: 4,1 Ω
Le 1 kHz : 0,09 mH
Qts: 0,70
Qe: 0,79
Qm: 6,2
Vas: 25,8 L
Bl: 3,53
Mms: 5 g
Sd: 144,7 cm²