ESB Audio 8.6K3UMA



  • 8.003UMA, 2-Way Mid-High Unit
  • 1.1″/28 mm Dome Tweeter, 3″/75 mm Cone Midrange
  • 28 mm aluminum voice coil (tweeter)
  • High-grade neodymium magnet
  • NPPVTM exponential cone (midrange)
  • ConexTM progressive spider (midrange)
  • Nominal Impedance: 4 Ohm
  • Nominal Power Handling: 120 Watt
  • Transient Power: 240 Watt
  • Frequency Response: 95 Hz ~ 25 KHz
  • Sensitivity: 91 dB 1W/1m
  • Mid-woofer – 8165
  • 6.5″/165 mm Mid-Woofer, Non-pressed paper cone
  • 32.4 mm voice coil diameter
  • Nominal Impedance: 4 Ohm
  • Nominal Power Handling: 160 Watt
  • Transient Power: 320 Watt
  • Frequency Response: 45 Hz ~ 4 KHz
  • Sensitivity: 89 dB 1W/1m


8000 The new OTTOMILA

The 8000 series can be considered the direct heir of the legendary 7000 series, which scored many successes in the world of Italian car stereo and beyond. We renewed a range of speakers already in itself exceptional, with the aid of the best technologies now available.

Elevated to perfection

The 8000 series can be considered the direct heir of the 7000 series. The goal was to renew a variety of speakers in itself exceptional, with the help of the latest technologies and the use of the best materials available today; always with an eye to the versatility of installation. Key to the development of this type of system in the car was so take full advantage of their exceptional musicality. In the 8000 series every detail was taken care of with the utmost care, from the choice of materials to the forms, from the construction and finishing of the baskets to the ventilation systems of magnets and coils. It has improved what was thought to be difficult to improve and we strongly believe that it has laid the foundation for another decade of success.

The UMA unit

This special and exclusive component driver is a concept born way back in 70’s, its aim is to concentrate midrange and tweeter emissions in a virtual single point. This minimizes phase delays and irregularities at the crossover point. (You can read more in The Phase page)

All the parts that make up this component have been made with the CNC process. This is very expensive and time consuming, 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.

Each component uses a very large, vented neodymium motor magnet, optimized with computer simulations (FEA) to obtain a greater efficiency and improve linearity along all voice coil’s excursion. The neodymium magnet is a high-grade type to eliminate magnetic loss at elevated temperature and concentrate  more force in less space. The tweeter uses a Torcon® soft dome, an exclusive Polyphenylene Sulfide (PPS) with a high performance fiber that offers superb heat resistance, low weight and excellent self-damping, to get a free resonance frequency response outside the audible frequency range.

The midrange’s non-pressed cellulose pulp exponential cone, with a Vinylester resin coating, ensures a perfect balance between rigidity, weight, and self-damping. The cellulose pulp guarantees an extremely natural and linear reproduction, with an excellent extension at high frequencies. Great attention was given to the ventilation of the two components, through a single axial ventilation on the tweeter and multiple on the midrange. To improve control and damping an acoustic resistance has been adopted on both components.

Combined, the two components are able to reproduce with perfect linearity all the spectrum from 95 Hz to 25 KHz.


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