18 -sound HD-1040 High Frequency Driver (8 of 16 ohm)

Beschrijving

Key features

• • 1 inch exit throat
  • 107 dB SPL 1W / 1m average sensitivity
  • 44mm (1 3/4 inch) voice coil diameter
  • 80 Watt program power handling
  • Treated polyethylene diaphragm
  • Proprietary phase plug design

Description

The HD1040 one inch exit high frequency compression driver has been designed for use in high quality audio systems.
Equipped
with proprietary Phase Plug architecture, the HD1040 has been designed
to give high level manufacturing consistency and smooth coherent wave
front at the horn entrance across the whole working frequency range.
The phase plug with its short openings and high flare rate value
assures low distortion and demonstrates remarkable improvements in
mid-high frequency reproduction.
The HD1040 diaphragm assembly is
made by proprietary treated Polyethylene material. Thanks to its
superior diaphragm dimensional stability (160?C), the polyethilene
shows constant behaviour during its whole working life. Moreover, this
particular material with its very high value of elasticity modulus,
(50% more than standard Mylar and 100% more than polyimide film) is
capable of superior transient and intermodulation distortion response.
The flat suspension shape is designed to maintain low stiffness and low
mid band distortion and response.
An edge-wound aluminum voice
coil wound on proprietary treated Nomex completes the diaphragm
assembly. Thanks to its physical properties, the proprietary treated
Nomex former shows a 30% higher value of tensile elongation at a
working operative temperature, (200?C) when compared to Kapton. This
feature enables proper energy transfer control from the voice coil to
the dome in real working conditions. Moreover, this proprietary former
material is suitable for use in damp and wet environments.
The
HD1040 powerful ceramic magnet assembly has been designed to obtain 16
KGauss in the gap within a compact ferrite motor structure.