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FOCAL ES100K

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Price : 28500.- บาท


Product Description

Ultra compact

4" two-way component kit

The ES 100 K is an ultra-compact solution with an impressive SPL of 90dB (2.83 V/1 m) for such a small design.

It is composed of two 4" (100mm) speaker drivers with Kevlar® cones. The famous yellow cones of the K2 Power line are light, rigid and have excellent damping to provide dynamic sound with incredible definition. The centre of the cone is equipped with a phase plug for improved sound dispersion around the vehicle.

The high frequencies are faithfully reproduced by two 025/32" (20mm) TKM tweeters. Composed of aramid fibres, these inverted dome tweeters have an exclusive 'M'-shaped profile to control deformation and to reduce distortion. The new-generation tweeters feature very compact crossovers which are easy to install. Various accessories are supplied for assembling the tweeters, which can be installed in the factory locations, on tilting frames or flush-mounted.

The size of each component of this kit has been optimised to offer a very compact solution which can be adapted for all kinds of set-ups in all kinds of vehicles.

The kit is supplied with aluminum and mesh grilles.



 

The Spirit of Sound... with a Kick

Besides its distinct yellow colour, the K2 Power line has become a lifestyle object in its own right worldwide. Once more, our engineers have pushed back the limits of performance to continue making the reputation of this extraordinary line synonymous with power and precision!
 This new generation of the K2 Power line is a reference for the most demanding sound lovers

Developed to allow you to reach the very top levels of acoustic reproduction and bass, the K2 Power range symbolizes Focal’s expertise. Combining an evocative mix of pure sound control with detailed dynamics, speed and sophistication, the “Power Hi-Fi” concept, originally developed by Focal, has all the hallmarks of a reference line. Our signature yellow Aramid fiber inverted dome tweeter combines smoothness, precision, and clarity, optimizing imaging and producing an astonishingly loud, clear, and realistic soundstage. This key component makes the difference from the competition.

Another element essential to Focal’s reputation for creating the very highest sound quality are the cones and subwoofers in the K2 Power line. They combine very high power handling and extremely detailed sound thanks to the exceptional rigidity of the K2’s composite sandwich cone technology. Built with precision, impact and the culture of car audio, K2 Power represents our passion to build and deliver the best.

 

ARAMID FIBRES SANDWICH CONE



Our Aramid fibres sandwich cone, recognisable by its distinctive yellow colour, is the symbol of K2 Power Car Audio line.

 

<center>K2 Composite<BR> Sandwich Cone</center><center>TKM & TKMX Tweeters</center>

 

A HERITAGE CONE

 

Used in JMLab Vega or Antea high-fidelity speakers, the K2 sandwich cone was introduced for the first time in 1986 with the use of Polykevlar. The Poly-K cone is composed of two layers of aramid fibres, applied to either side of a hollow micro-ball structure in order to improve the balance between weight, rigidity and damping.

 

 

THE CONE AT THE HEART OF THE PERFORMANCE

 

In 2016, our Aramid fibres cone has evolved, but preserves its identity and the combination of its three key factors: rigidity, lightness and damping. The goal: guaranteeing high-quality audio reproduction whatever the genre of music you listen to.

 

It is now composed of a very light foam layer, between a layer of Aramid fibres and a layer of fibreglass, ensuring clear and precise sound void of any colouration.

M-SHAPED INVERTED DOME TWEETER

A major innovation of the K2 Power line, the inverted dome tweeter in aramid fibres benefit from a new profile: M-shaping.

 

bandeau



Simulation at 15KHz

M-profile inverted dome

M-profile inverted dome

Finite element analysis

INVERTED DOME tweeter

INVERTED DOME tweeter

Finite element analysis

 




A FREQUENCY RESPONSE IMPROVED

This exclusive M-profile of the tweeter enables the extension of  the frequency response to 22KHz, reducing distortion for a smoother diffusion and  great precision in the very high end. Moreover, UV glue used on the voice coil reinforces its reliability and stability.

Bandeau fréquences


Frequency response comparison

M-profile inverted dome Tweeter / Inverted dome Tweeter


 




INSPIRED FROM IAL TECHNOLOGY



INSPIRED FROM IAL TECHNOLOGY

 

"M" tweeter is also associated with a push pull motor, inspired by IAL technology (sealed chamber) which improves bandwidth, reduces resonances and makes the treble more precise and smoother.

 

TMD - Tuned mass damper



The obsession with the midrange

 

The midrange register is no doubt the most complicated to control in a sound system. On one hand, there must be a smooth transition with the bass. On the other hand, it must be tuned to the tweeter in terms of dispersion and acceleration. This determines the homogeneity of the timbre and spatialisation.

For the past 20 years, we have been working on mastering the "break up" (the frequency at which the cone becomes deformed, leading to distortion) of our 3rd generation "W" cones and on drastically reducing the resonance of the tweeter with the IAL 2. Today, thanks to the power of finite element analysis, our teams have developed simulation software to visualise the dynamic behaviour of the suspension which connects the cone to the basket, thus revealing the performance issues requiring attention.

Tuned mass damper

Following the discovering of these issues, we had to conceive the equipment to solve them. The solutions already known for increasing the damping properties of the suspension all result in an increase of the mass which consequently alters definition. The answer came from a technology used in earthquake-resistant skyscrapers and which is also used for the suspension on racing cars! This technology is called a "Tuned Mass Damper": an additional mass oscillate in opposition to the resonance frequency to control it.

Applied to the speaker driver, the solution consists in simply two tubular rings on the suspension whose dimensions and position have been judiciously determined. They form our Tuned Mass Damper (TMD) and they stabilise the dynamic behaviour of the surround according to resonance, thus avoiding deformation of the cone without afflicting the dynamics. This innovation is patented.





 

Visual analogy of the surrounds

 

 

 

Our Tuned Mass Damper (TMD) consists of two tubular rings moulded onto the surround. On the left the default suspension, on the right, the TMD suspension. This simple solution, perfected thanks to our new software, stabilises the dynamic behaviour of the surround according to resonance, thus avoiding deformation of the cone without afflicting the dynamics.


 

Principle of the Tuned Mass Damper



 

The principle of the tuned harmonic damper (TMD): The graph on the left demonstrates the principle of the tuned mass damper. In red, an m1/k1 system with very pronounced resonance. By adding a mass/spring system m2/k2 (upper section of the diagram), there will be two resonance peaks, as represented by the blue curve. The drop or anti-resonance being previously based on the resonance of the main system, we get the green curve. Finally, by judiciously adding a damper, we obtain the purple curve. The resonance has almost disappeared!

With Sopra hi-fi speakers, we opted for exponentially shaped cones in order to increase frequency response, and consequently impulse response. Another reason for increasing definition.


 


Measurement and analysis


 

Improved response linearity between 1 and 2kHz and the frequency extension provided by the exponential cone profile..
Frequency response of our latest midrange driver (blue trace) compared to the previous-generation W-cone midrange, representing prior state-of-the art performance (red trace). Improvements to the magnetic circuit also contribute (see next section). NB: The dip at 3kHz in the blue trace is due to the tested driver not being fitted with a dust cap.








Effect of the harmonic damper on linearizing the frequency response between 1.5 and 2kHz (blue trace with TMD, red trace without).




Effect of the harmonic damper on nonlinear distortion, which is halved between 1.5 and 2kHz (blue trace with TMD, red trace without).


 

diameter 4″ (100mm)
voice coil diameter 0-13/16″ (20mm)
voice coil height 0-1/3″(8.5mm)
motor Neodymium
tweeter TKM (“M” profile aramid fiber inverted dome)
cone Composite K2 Power “W” sandwich cone
surround Tuned Mass Damper (TMD)
separated crossover 12/12dB (3.5kHz)
   tweeter adjustable level.     +3; 0; -3dB/oct
max power 120W
nominal power 60W RMS
sensitivity (2.83V/1m) 90dB
frequency response 110Hz-22kHz
impedance 4 Ω
impedance Supplied grilles