Technical Specifications ESB5.165

- Nominal Impedance: 3 Ohm
- Nominal Power: 160 Watt
- Transient Power: 320 Watt
- Frequency Response: 50 Hz ~ 3.5 KHz
- Sensitivity: 95 dB 2.83v/1m

Technical Specifications ESB5.UMA

- Nominal Impedance: 4 Ohm
- Nominal Power Handling: 110 Watt
- Transient Power: 220 Watt
- Frequency Response: 500 Hz ~ 25 KHz
- Sensitivity: 94 dB 2.83v/1m

Main Features ESB5.UMA

- This special and exclusive component driver is a concept conceived way back in 1970’s. Its aim is to concentrate medium and tweeter emissions in a single virtual point. This minimizes phase delays and irregularities at the crossover point.
- All the parts that make up this component were made with the CNC process. This is very expensive and requires a lengthy manufacturing process, but ensures perfect geometry and impeccable aesthetics. Moreover, the parts are made with Avional aluminum with deep oxidization.
- Both components use a very large neodymium motor magnet optimized with computer simulations (FEA) to obtain a great efficiency and improved linearity all along the voice coil’s excursion. The neodymium magnet is of a high grade to eliminate magnetic losses at elevated temperatures and to concentrate more force in less space.
- The tweeter dome, made of high module carbon fiber with integrated soft cloth suspension, offers superb heat resistance, low weight and excellent self-damping, with a natural and linear response and a very low frequency extension.
- The midrange, also manufactured in carbon fiber, integrates a suspension in synthetic foam, ensuring a perfect balance between rigidity weight and self-damping. The carbon fiber guarantees an extremely natural and linear reproduction with an excellent extension at the ends of the band.
- Great attention was given to the ventilation of the two components, through multiple axial holes. Residual resonances are neutralized by the under dome dB Cloth® damping material. This extends the frequency response to the lower limits and reduces harmonic distortion. To improve control and damping an acoustic resistance was adopted on both components.
- Combined together, the two components are able to reproduce with perfect linearity the entire spectrum from 500Hz to 25KHz.
- Small permanent magnets fix the tweeter and midrange grill in the correct position and these are easy to remove for customization.

Main Features ESB5.165

- The magnet motor is optimized with FEA simulation to ensure a perfectly symmetrical magnetic flux in both directions of movement of the cone.
- Great attention was paid to the axial and radial ventilation of the moving coil to ensure high power handling, reduced distortion, and increased durability. The stepped back allows a very long cone excursion.
- Metal parts from solid and refined material are CNC machined for maximum magnetic flux linearity and minimum magnetic loss. This reduces distortion at high power levels.
- A pure copper ring is inserted into the magnetic field to reduce harmonic distortion.
- A 25 mm CCAW (Copper Clad Aluminum Wire) double layer voice coil is wound on an aluminum former for exceptional power handling and compression-free reproduction to handle the most demanding musical passages.
- The carbon fiber reinforced, polymer matrix composite, exponential cone ensures an extraordinary rigidity combined with very low weight.
- The eight twin-spoke anti-resonant and self-extinguishing carbon fiber reinforced ABS frame ensures a drastic reduction of the cone's back reflections. This frame design assures high structural and torsional rigidity. This is necessary for perfect parts alignment and very tight construction tolerances.
- The exclusive ESB designed TSW (Twin Symmetrical Wave) double-wave rubber suspension allows an excursion with perfect progression and linearity. This feature ensures natural low-frequency reproduction at low as well as at high volume.
- The large Conex® spider allows a smooth and gentle run at low excursions, and gently holds the cone at high excursions, thus increasing the useful frequency range.