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Eighteensound TWEETER HD125 - 8ohm

Šifra: 16348
7.080,00 rsd.
5.900,00 rsd. (Bez PDV-a)
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The HD125 1 inch exit HF unit has been designed as the natural evolution of the industry standard HD120 compression driver. It delivers an unmatched combination of extended linear frequency response and very high efficiency.

The HD125 diaphragm assembly is made in proprietary treated polyethylene material. This design maintains the minimum resonance frequency point value at 1600 Hz, extending the frequency response in the mid region when compared to HD120 compression driver.
The design of diaphragm and its surround in polyester material allow a best movement and stress control; the special 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. Thanks to its physical properties, the voice coil former 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, this particular former material is suitable to work also in higher moisture contents environments.

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 frequency range. At the end, it results in a smooth coherent wavefront in the horn entrance, high thermal stability and manufacturing consistency.

The HD125 compact size and lightweight ceramic magnet assembly has been designed to obtain 16 KGauss in the gap.

1 inch exit throat
109 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


Product type Compression driver
Brand Eighteen Sound
Reference HD125
Product code DRV10D125PO08FA - 0421M8H100


Nominal impedance 8 ohm
Dimensional category 3.5 inch
Manufacturer sensitivity 109 dB
Nominal power handling 25 W
Max power handling 50 W
Bandwidth 2000÷18000 Hz
Recommended min cutoff frequency 2500 Hz
Exit dimension 1.0 inch


Flux density 1.65 T
Zmin 8 ohm
Weight ~0.8 kg


Voice coil diameter 1 inch
Outside diameter 87 mm
Depth 46 mm

Shape & Materials

Front chape Cylindrical
Magnet type Ferrite


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