18 -sound E8MB400 bass-midd driver

Beschrijving

Key features

• • 95 dB SPL 1W / 1m average sensitivity
  • 51 mm (2 in) Interleaved Sandwich Voice coil (ISV)
  • 280 Watt AES power handling
  • Improved heat dissipation via unique basket design
  • Weather protected cone
  • Suitable for compact two way and multiway systems

Description

The 8MB400 mid-bass transducer has been developed in response to a
specific market requirement for a 200 mm (8 in) midbass driver which
combines excellent linearity with good efficiency and power handling
capabilities. It is primarily intended for use as a midbass driver in
compact 2-way reflex enclosures with a 1 inch compression driver or
tweeter but as a result of its versatile characteristics, it can also
be used in multiway systems.
The
curvilinear, treated paper cone is formed using a unique wood pulp
composition designed to achieve the best possible rigidity and
stiffness. This is carried by a polycotton multiroll surround to
provide increased excursion whilst controlling break up modes.
The
50 mm (2 inch) aluminum wire voice coil employs same Interleaved
Sandwich Voice coil (ISV) technology. It is composed of a high strength
fiberglas former carrying windings on both the outer and inner surfaces
to achieve a mass balanced coil. This results in an extremely linear
motor assembly which, in conjunction with the highly advanced design of
the magnetic structure, provides a high force factor or BL.
The
voice coil is cooled by incorporating airways between the chassis back
plate and the magnetic top plate to channel heated air away from the
voice coil and gap and dissipate it.
In-house FEA CAD facilities have been used to optimise flux density and BL factor within the air gap.
Due
to the increasing use of sound systems at outdoor events, the 8MB400
ability to perform in humid environments is a key feature. This has
been achieved using an exclusive cone treatment which renders the cone
resistant to humidity.