ESB 8.003U 2 Way Mid-High Unit - Pair

Vendor: ESB
The UMA unit   This special and exclusive component driver is a concept born way back in the '70s, its aim is to concentrate midrange and tweeter emissions in a...
$ 1,499.99

The UMA unit

 

This special and exclusive component driver is a concept born way back in the '70s, its aim is to concentrate midrange and tweeter emissions in a virtual single point. This minimizes phase delays and irregularities at the crossover point. 

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 Avion 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 greater efficiency and improve linearity along with all voice coil excursion. The neodymium magnet is a high-grade type to eliminate magnetic loss at elevated temperatures 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 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.

Specifications:

28 mm aluminum VC (tweeter)

Torcon® soft dome (tweeter)

High-grade neodymium magnet

Ferrofluid cooling and damping

NPPV exponential cone (mid)

Conex progressive spider (mid)

Motor metal parts CNC machined 

Under-dome dB Cloth® damping material

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Nominal Impedance: 4 Ohm

Nominal Power Handling: 120 Watt

Transient Power: 240 Watt

Freq. Response: 95 Hz ~ 25 KHz

Sensitivity: 91 dB 1W/1m

 

Datasheet PDF

 

 

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