Data Sheet

12ND710
Very High Output MB Neodymium Driver
Key Features
101 dB SPL 1W / 1m average sensitivity
75 mm (3 in) Interleaved Sandwich Voice coil (ISV)
450 W AES power handling
Neodymium magnet assembly
Double Demodulating Rings (DDR) for lower distortion
and reduced inductance
Humidity resistant cone
Suitable for midbass frequency reproduction
General Description
The 12ND710 has been specifically designed for use either as a
midbass driver in compact 2-way reflex enclosures or as a direct
radiating or horn loaded, dedicated midrange driver, in multi-way
touring and fixed installation concert and arena systems.
The neodymium magnet assembly assures high flux concentration,
low power compression and excellent heat exchange because the
external magnet configuration is considerably more efficient than
traditional under-pole magnet topology.
Consequently, high levels of force factor and power handling with an
optimum power to weight ratio have been achieved.
Direct coupling of the special design basket and magnetic assembly
with the large heat sink facilitates thermal flux through the ambient
air, increasing the power handling capabilities and lowering the
power compression.
The curvilinear paper cone has been created with a special high
strength wood pulp designed to achieve the best possible linearity
within its intended frequency range and to control bell-mode
resonances around the cone circumference. The cone is carried by a
multiroll suspension formed from a linen-like material which is more
resistant to aging and fatigue than traditional materials.
The already low distortion and sound quality are further improved by
the use of Double Demodulating Rings technology (DDR) designed to
dramatically reduce the intermodulation and harmonic distortion
and improve the transient response.
The 12ND710 implements Interleaved Sandwich Voice coil
technology (ISV), in which an aluminum coil is wound inside and
outside a high strength fiberglas former, providing a better thermal
and mechanical performance than conventional coils.
A proprietary humidity-block cone treatment makes the transducer
suitable for outdoor use in adverse weather conditions. In addition, a
special coating applied to both the top and back plates makes the
12ND710 far more resistant to the corrosive effects of salts and
oxidization.
022126N710 16 Ohm
022128N710 8 Ohm
NEODYMIUM LF-MB-MF TRANSDUCERS
[e-mail]
www.eighteensound.com