ESB · 4000 Series
4.28
1.1”/28 mm Silk Dome Tweeter
$149.99MSRP · USD
1.1"/28 mm Sonatex silk dome tweeter with a high-grade N52 neodymium magnet and CNC-machined aluminum alloy flush-mount flange, delivering extraordinary efficiency and controlled high-frequency reproduction.
Main Features
- Sonatex™ polymer-laminated silk dome with catenary curvature for wide dispersion
- High-grade N-52 neodymium magnet — over 25% stronger than common N-48 magnets
- Large copper-clad aluminum (CCAC) vented voice coil for heat dissipation and extended response
- CNC-machined pole plate for maximum magnetic flux
- Deluxe stainless-steel grille calibrated as an acoustic lens
Key Specifications
| Power Handling | 100 W RMS · 200 W peak |
| Nominal Impedance | 4 Ohm |
| Sensitivity | 93.5 dB 2.83v/1m |
| Frequency Response | 1.5 KHz – 22 KHz |
Construction
| Dome | Sonatex silk (polymer laminated) |
| Magnet | High-grade N52 neodymium |
| Voice Coil | Copper clad aluminum (CCAC), vented |
| Flange | CNC-machined aluminum alloy, flush mounted |
Product Details
| Brand | ESB |
| Series | 4000 |
| Model | 4.28 |
| SKU | 4.28 |
| EAN | 8033373006333 |
Genuine product · Authorized U.S. dealer · Drop-shipped direct
