Beyma SMC65Nd 70W 8 Ohm 1.4" Compression Driver

This professional high quality compression driver features a composite diaphragm assembly. The mylar surround provides damping and avoids typical resonant peaks of metal surrounds. By the other hand, the pure titanium dome exhibits the unique mechanical properties of this material. The diaphragm is attached to an edgewound aluminium ribbon voice coil, providing exceptional high acoustic pressure over an extremely wide frequency range. Moreover, the neodymium magnet reduces the net weight around a 50% with regard to a ferrite model. Finally, the use of a rim centred diaphragm allows field replacement without soldering.

Technical Specifications

• Throat diameter 36 mm. 1.4 in.
• Rated impedance 8 ohms.
• Minimum impedance 7.2 ohms @ 3 kHz
• D.C. Resistance 5.5 ohms.
• Power capacity 70 w AES above 1 kHz
• Program power 140 w above 1 kHz
• Sensitivity 108 dB 1 w @ 1m coupled to TD-385 horn
• Frequency range 0.6 - 20 kHz
• Recommended crossover 0.8 kHz or higher (12 dB/oct. min.)
• Voice coil diameter 72.2 mm. 2.84 in.
• Magnetic assembly weight 2.1 kg. 4.62 lb.
• Flux density 2 T
• BL factor 11.36 N/A