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.


A high low register speaker of audiophile quality: the 400 EXC offers very high quality of answer (speed and broad band) because it is built goshawks of the same membrane as 400-2000.

Its advantage remains open the possibility of adjustment of these parameters thanks to a powerful engine electromagnetic. Adaptable of this fact to many enclosures, it requires an external power (ideal of 10 with 14V 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 pour 9V


Impedance 9V


You will find below the parameters 2019, measured according to the AES2-1984-r2003 standard.
Efficiency (2,83V/1m):

Efficiency (1W/1m):

96,7 to 98,7dBspl

95 to 97dBspl

Bandwidth: 23Hz-4KHz
Impedance :
Power: 120W
Suspension: Canvas
Resonance frequency: 23 Hz
Linear excursion: +/- 5,9 mm
Magnetic field: 0 to 1.25 T
Diameter HP: 404mm
Frame thickness: Aluminum
Diameter fixation: 382mm
Diameter drilling holes: 358mm
Depth HP: 215mm
Alimentation: 9 to 14 V CC.
Fs: 23,4 Hz
Re: 5,55 Ω
Le 1 kHz: 1,35 mH
Qts: 0,37 à 0,24
Qe: 0,38 à 0,245
Qm: 11,15
Vas: 615 L
Bl: 11,65 à 14,6
Mms: 63,6 g
Sd: 772 cm²