Beschrijving
De 120 wordt niet meer gemaakt, daarvoor is nu de XD-125 leverbaar.
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
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.
| GENERAL SPECIFICATIONS | |
| Throat Diameter | 25,4 mm (1 in) |
| Rated Impedance | 8 ohm |
| DC Resistance | 5,7 Ohm |
| Minimum Impedance | 8 ohms 5000Hz |
| AES power (1) | 25 W above 2,5 kHz |
| Program power (2) | 50 W above 2,5 kHz |
| Sensitivity (1W@1m) (3) | 109 dB |
| Frequency Range | 2 kHz ? 18 kHz |
| Recomm. Xover Frequency | 2500 Hz (12dB/oct slope) |
| Diaphragm Material | Polyester |
| Voice Coil Diameter | 25,4 mm (1 in) |
| Voice Coil Winding Material | Edge-wound aluminum |
| Magnet Material | Ferrite |
| Flux Density | 1,65 T |
| BL Factor | 3,5 N/A |
| Polarity | Positive voltage on plus terminal gives positive pressure in the throat |
| MOUNTING INFORMATIONS | |
| Overall diameter | 87 mm (3,4 in) |
| Mounting holes diameter | 2 M5 at 180 degrees |
| Bolt circle diameter | 76 mm (3 in) |
| Total depth | 46 mm (1,8 in) |
| Net weight | 0,8 Kg (1,77 lb) |
| Shipping weight | 0,9 Kg (1,99 lb) |
| CardBoard Packaging dimensions | 90x90x70 mm(3,5×3,5×2,8 in) |
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