Product Sheet 215 Heritage


Alnico, one of the oldest magnet formula with its Ticonal cousin, offer high remanence, almost perfect temperature ratio, very high usage temperature of 450°C, but low coercivity for old and usual grades. It’s a very good, and expensive, magnet which needs careful design of the magnet assembly to exploit its qualities.

The all-new loudspeaker is based on the original T. 215 SRTF diaphragm from the 1960s. We have indeed developed this loudspeaker by starting from original models in order to find the sound qualities that have satisfied music lovers over the past decades.


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

Efficiency (1W/1m):



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 1 kHz: -mH
Qts: 0,63
Qes: 0,71
Qms: 5,6
Vas: 65 L
Bl: 5,4 Tm
Mm : 9,4 g
Sd: 263 cm2