215 Heritage bicone
Fullrange driver
25 W / 96,5dB / 8 Ohms

1 399,00 TTC

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

Efficiency (1W/1m):

96,5dBspl

94,8dBspl

Bandwidth: 50Hz-20KHz
Impedance :
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