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XD125 HF Compression Driver
Key features
- 1
inch exit throat
- 108 dB SPL 1W/1m average
sensitivity
- 25,4 mm (1 in) edgewound aluminum
voice coil
- 50 Watt program power handling
- Low
weight, easy mounting and handling structure
- Usable
in two way or multiway systems
- 90° x 60° coverage
Constant directivity pattern
- Unique Eighteen Sound
elliptical shape
0421M8X100
8ohm
0421M6X100 16ohm |
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Description
The XD125 has been designed for 2 way or 3 way systems. It
will deliver an unmatched combination of extended linear frequency
response and very high efficiency.
The major advancement in
XD125 compression driver consists in a new innovative diaphragm
assembly made in proprietary treated polyethylene material. This design
maintains the minimum resonance frequency point value at 1600Hz,
extending the frequency response in the mid region when compared to
previous compression driver model, the XD120.
The design of
diaphragm and surround in polyester material allows better control in
terms of movement and mechanical stress. Radial ribs increase stiffness
avoiding uncontrolled vibration modes in the usable frequency range.
An
edge-wound aluminum voice coil, wounded on proprietary treated Nomex,
completes diaphragm assembly. Proprietary treated Nomex former, thanks
to its physical properties, shows 30% higher value of tensile
elongation at working operative temperature(200°C) when compared to
Kapton. This plus is capable to keep properly energy transfer control
to the dome in real working conditions. Moreover, Eighteen Sound voice
coil proprietary Nomex former is suitable to work also in environments
with higher moisture contents.
The polypropylene phase plug is
the result of a meticulous design exercise. Its shape assures the
correct acoustic impedance of the radiating dome, reducing distortion
levels across a very wide range of frequency. Final result is a smooth
coherent wavefront in the horn entrance, high thermal stability and
manufacturing consistency.
The compact and lightweight
ceramic magnet assembly has been designed to obtain 16KGauss in the gap.
The
XD125 pressure die-cast polyurethane foam horn maintains constant
nominal 90° Horizontal x 60° Vertical pattern control, providing
consistent on-axis and off-axis frequency response from 2kHz to 16kHz
in the horizontal plane and from 2,5kHz to 16 kHz in the vertical
plane. Horn directivity is constant from 2,5kHz. Computer Aided Finite
Element Analysis and extensive testing were used to obtain the horn
contours. Horn is designed to be free of resonance and vibrations
assuring maximum strength.
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