215 Heritage bicone
Fullrange driver
25 W / 96,5dB / 8 Ohms
This brand new driver uses the original cone from the mythical T215 SRTF full-range drivers from the 1960’s (used by ORTF, Radio France, etc….). We have designed this new model from this gistorical starting point in order to regain the sonic qualities that so many music-lovers have enjoyed over the last decades.
The newly designed ventilated field-coil engine has been developped under FEA software and its coil is winded by a CNC machine. Magnetic field can exceed 1,2Tesla depending on the current being fed. The design allows for perfect symmetry of the Bl(x) curve with a +/- 3,2mm excursion and a lower distortion.
Description
ALNICO Series
This brand new driver uses the original cone from the mythical T215 SRTF full-range drivers from the 1960’s (used by ORTF, Radio France, etc….). We have designed this new model from this gistorical starting point in order to regain the sonic qualities that so many music-lovers have enjoyed over the last decades.
The newly designed ventilated field-coil engine has been developped under FEA software and its coil is winded by a CNC machine. Magnetic field can exceed 1,2Tesla depending on the current being fed. The design allows for perfect symmetry of the Bl(x) curve with a +/- 3,2mm excursion and a lower distortion.
Specifications
Specification
Efficiency (2,83V/1m):
Efficiency (1W/1m): |
96,5dBspl
94,8dBspl |
Bandwidth: | 50Hz-20KHz |
Impedance : | 8Ω |
Power max. RMS: | 25W |
Cone: | paper |
Surround: | 3 pleated paper |
Voice coil: | 25 mm |
X max: | +/- 3,2 mm |
X damage: | 6,5 mm |
Magnet: | Alnico V |
Diameter HP: | 224/237 mm |
Diameter fixation: | 224 mm |
Diameter drilling holes: | 212 mm |
Depth HP: | 157 mm |
Fs : | 64 Hz |
Re : | 5,5 Ω |
Le : | 0,30mH |
Qts : | 0,63 |
Qe : | 0,71 |
Qm : | 5,67 |
Vas : | 65 L |
Bl : | 5,4 Tm |
Mms : | 9,4 g |
Sd : | 263 cm^2 |