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ATOHM WSD20 DND 04F Speaker Driver Tweeter
The Atohm WSD20 DND 04F Tweeter features a 20mm silk dome with a diameter of 12 cm. Offering excellent performance and reliability, this tweeter can be paired with 10- to 17-cm mid-bass drivers to deliver outstanding high-frequency reproduction.
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Atohm WSD20 DND 04F Speaker Driver Tweeter Silk Dome 100W 4 Ohm 97dB Ø12cm
The Atohm WSD20 DND 04F tweeter features a 20mm silk dome with an outer diameter of 12cm. Offering excellent performance and reliability, this tweeter can be paired with 10 to 17cm mid-bass drivers to deliver outstanding high-frequency reproduction.
Summary of the main features of the Atohm WSD20 DND 04F:
- The 20mm dome driver, made of treated silk, delivers a smooth frequency response and refined, precise sound.
- Phase equalizer with precision mount.
- Optimized F.E.A. motor with central ventilation, for maximum magnetic flux density and minimal flux modulation.
- Short-coil air gap for a constant force factor (BL) over the nominal stroke range.
- Low, linear inductance over a wide excursion range for very low distortion levels.
- Thin-walled aluminum coil form with a treated air gap.
- The rear panel and front fascia are made of ribbed die-cast aluminum for maximum rigidity.
Technical characteristics
| Specifications | |
|---|---|
| Speaker type | Tweeter |
| Outer diameter | Ø12cm |
| Rated power (RMS) | 100W |
| Impedance | 4Ω |
| Sensitivity | 97dB 2.83V/1m |
| Voice coil diameter | Ø20mm |
| Coil height | 1.5mm |
| Air gap height | 2mm |
| Recommended cutoff frequency | ≥4000Hz |
| Thiele & Small parameters | |
|---|---|
| Resonance frequency (fS) | 1350Hz |
| CC resistance (RE) | 3.4Ω |
| Mechanical quality factor (QMS) | 2.95 |
| Coil inductance (LE) | 0.03mH |
| Moving mass (MMD) | 0.16g |
| Emissive surface | 4.65cm² |
| Maximum linear travel (Xmax) | 0.25mm |
| Materials | |
|---|---|
| Membrane material | Silk |
| Salad bowl material | Aluminium |
| General | |
|---|---|
| Weight | 0.17kg |
| Packaging | 1x Atohm WSD20 DND 04F |
| Speaker Power (W RMS) | 100.0 |
| Speaker Type | Dome tweeter |
| Impedance (Ω) | 4 |
| Loudspeaker diameter (mm) | 120.0 |
| Diaphragm type | Silk |
| Efficiency / Sensitivity (dB) | 97.0 |
| Max Linear Excursion (Xmax) (mm) | 0.25 |
| Lowest frequency (Hz) | 500 |
| Highest frequency (Hz) | 22000 |
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