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215 RTF 64
Full range driver unit

This full range driver unit and high efficiency is not other than evolution 95 of the HP of legend which equipped the studios of the house of the radio, the ORTF, of the RAI, RTL and EUROPE 1. Approved opera, it gets a cordial listening with the clear and precise medium and offers multiple possibilities of assembly. Ideal listening with an amplifier (tube or transistor) of low power of approximately 10W.
  In open baffle, the spacial presence of the sound will enchant you, the HP expresses its great dynamics as well as possible. In TQWT it will emphasize all the smoothness of your preferred listenings. This HP can be reinforced by a tweeter of the type JBL 2405 or B&C D-32 with a simple cut with 10kHz by one wrapped of 0.47 or 0.33 uF. The low register can be reinforced, in particular in open baffle by the 285 or the 400 SUPRAVOX cut at 100Hz.
Mesurement curves
215 RTF 64 Specifications

Efficiency 1 W/1m at Fs

97 dB

Fs

60 Hz
Frequency response 50 10kHz Re 6.5 ohms
Impedance 8 ohms

Qts

0.58

Power max. RMS

35 W Qe 0.6
Weight 2.8 kg Qm 7
Suspension 3 plis papier Vas 80 L
Linear excursion 4 mm Bl 5.8

Magnet diameter

120 mm Cms 0.8
Magnetic field 1.5 T Mms 8.5 g

Diameter HP

224/237mm Sd
263 cm²

Frame thickness

Alu 10mm    
Diameter fixation holes 227 mm    

Diameter drilling enclosure

212 mm    

Depth HP

100 mm