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215 SIGNATURE
Full range driver unit
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.
Mesurement curves
215 Signature Specifications

Efficiency 1 W/1m at Fs

94dB

Fs

50Hz
Frequency response 45 à 10kHz Re 6.5 ohms
Impedance 8 ohms

Qts

0.8

Power max. RMS

35 W Qe 0.9
Weight 3.3 kg Qm 8
Suspension 3 plis papier Vas 85L
Linear excursion 8 mm Bl 5

Magnet diameter

120 mm Cms 0.8
Magnetic field 1.2 T Mms 8 g

Diameter HP

224/237mm Sd
263 cm²

Frame thickness

Alu 10mm    
Diameter fixation holes 227 mm    

Diameter drilling enclosure

212 mm    

Depth HP

105 mm