Classic series
Its objective, to maintain the philosophy of SUPRAVOX, full range driver units and high efficiency. We work still to widen the useful bandwidth for a highest efficiency possible, while unceasingly improving the definition, the quality and the linearity. Diameter 135 to 380 mm, the audiophile can satisfy its passion.


The 215 Signature is an evolution of the 215 rtf. It is the result of the Supravox experiment on the treatments of cone and the optimization of the couple magnet/voice coil. The engine and the voice coil were modified for a better reproduction of the low registers without compression of dynamics. The linear excursion passes from +/- 2mm (versions rtf) with +/- 4mm.

It offers a low register deeper tended and precise. All this is paid by a sensitivity of 94dB/W. This 215 is has to privilege for the followers of a very balanced listening. Without the bicone the answer is linear up to 10 Khz.

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






Efficiency: 94dB
Bandwidth: 45Hz-10KHz
Impédance :
Power: 35W
Suspension: 3 paper pleats
Linear excursion: 4,1mm
Magnet diameter: 120mm
Magnetic field: 1 T
Diameter HP: 224/237mm
Frame thickness: Alu 10mm
Diameter fixation: 227mm
Diameter drilling holes: 212mm
Depth HP: 105mm
Fs : 50Hz
Re : 6.5Ω
Qts : 0.8
Qe : 0.9
Qm : 8
Vas : 85 L
Bl : 5
Cms : 0.8
Mms : 8 g
Sd : 263 cm2