4.28 28 mm tweeter with polymer-laminated silk dome

ESB car audio
Your price:
€ 170,00
Price per pair (VAT included)
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Type
Tweeter
Dome Size
28 mm
MAX Power
200 Watt
RMS Power
100 Watt
Frequency Response
1.5 KHz - 22 KHz Hertz
Sensitivity
93.5 dB
Impedance
4 Ohm

ESB car audio 4.28 28 mm Tweeter with silk dome and polymeric laminate

The ESB Car Audio 4.28 tweeters combine cutting-edge technology and high-quality materials to guarantee an unparalleled sound experience. The silk dome with polymeric laminate Sonatex™ is an innovative material that creates a perfect balance between weight, rigidity and self-damping, ensuring precise and detailed sound reproduction.

The felt damper positioned under the dome improves the acoustic phase, absorbing reflections from the magnetic structure and eliminating unwanted distortions. The heart of the ESB Car Audio 4.28 tweeters consists of a high-quality N-52 neodymium magnet. This magnet is 25% stronger than common magnets of the same size, guaranteeing extraordinary efficiency and superior performance.

The main body of the tweeters is made of ABS filled with fiberglass, a material that ensures superior resistance and long-lasting durability. Additionally, inside the ventilation hole there is an acoustic resistance component that controls and dampens the dome movement, reducing distortion and improving the linearity of the impedance curve.


The CNC-machined plate in alloy steel with very low carbon content is designed to guarantee perfect flatness, positioning itself flush with the magnet without reducing the crucial magnetic flux. The large mobile coil in aluminum coated with copper is another key component of the ESB Car Audio 4.28 tweeters. This type of coil is very lightweight and has excellent heat dissipation capacity, allowing it to handle very high power and reproduce music with extreme realism.


The deluxe protective grille in stainless steel with calibrated perforations functions as an acoustic lens, guaranteeing sound emission in the on-axis part of the speaker and curving it to the sides. This is particularly useful in car installations, where the positioning of the speakers often involves off-axis listening. The CNC-machined aluminum alloy flange mounted flush adds a further touch of quality.

Scheda Tecnica

n-20240802110610-scheda-tecnica-4-28.pdf

Manuale Installazione

n-20240802110610-manuale-installazione-4-28.pdf

ESB 4.28 car audio Technical specifications

  • Speaker type Component tweeter
  • Nominal diameter 1.1"/28 mm
  • Nominal impedance (Znom) 4 Ohm
  • Continuous power handling: 100 W
  • Peak power 200 W
  • Rec. Amplifier power 40 - 150 W (RMS)
  • Frequency response 1.5 KHz - 22 KHz
  • Parameters
  • Mobile coil resistance (Re) 3.6 Ohm
  • Mobile coil diameter 28 mm
  • Free air resonance (Fs) 990 Hz
  • Sensitivity
    • 90.5 dB at 1W/1m
    • 93.5 dB at 2.83 V/1m
  • Electrical "Q" (Qes) 1.107
  • Mechanical "Q" (Qms) 0.939
  • Total speaker "Q" (Qts) 0.508
  • Bandwidth
    • With HP filters 48 dB/oct. HP filters 2 KHz - 22 KHz
    • With HP filters 24 dB/oct. HP filters 2.2 KHz - 22 KHz
    • With HP filters 12 dB/oct. HP filters 2.4 KHz - 22 KHz
€ 170,00 Price incl. VAT