8028S

Product Name

  • Model : 8028S
  • Brand : ESB AUDIO
  • Specificity : 1.1"/28 mm Dome Tweeter

Product description

All the parts that make up this tweeter have been made with the CNC process, this is very expensive and long, but ensures perfect geometry and impeccable aesthetics. A mix of precious materials such as brass, stainless steel and Avional aluminum are used together for a unique product.

The tweeter uses a very large vented neodymium motor magnet optimized with computer simulations (FEA) to obtain a great efficiency and improve linearity along all the voice coil’s excursion. Neodymium magnet is a high-grade type to kill magnetic loss at elevated temperature and concentrate more force in less volume.

Torcon® soft dome, of an exclusive Polyphenylene Sulfide (PPS) with a high-performance fiber that offers superb heat resistance, low weight, excellent self-damping, and a free resonance frequency response above the audible range.

The semi-catenary profile on our diaphragm provides maximum stiffness at the tip of the dome. The result is clean, sooth and transparent sound reproduction with high efficiency from 940Hz to 25KHz at high power handling capacity.

The center ventilation hole provides an optimal cooling of moving coil to be able to handle high power without dynamic compression and reduces the compression of the air at the back of the dome with a great reduction of distortion and extended response to lower frequency. A special acoustic resistance helps to control the tweeter Qts. Residual resonance is killed by the dB Cloth® under-dome damping material, which extends the frequency response to the lower limits and reduces harmonic distortion.

To fix the tweeter you can use the classic solution that ESB has been proposing for decades: a practical aluminum threaded ring.

Specifications

Woofer
28 mm aluminum voice coil
32.8 mm nominal diameter
High-grade neodymium magnet
Torcon® soft dome
CNC Avional faceplate
Ferrofluid cooling and damping
Acoustic resistance Qts control
Computer optimized design
Motor metal parts CNC machined
Under-dome dB Cloth® damping material
 
Nominal Impedance
4 Ohm
Nominal Power Handling
110 Watt
Transient Power
220 Watt
Frequency Response
940 Hz ~ 25 KHz
Sensitivity
91 dB 1W/1m