Advanced driver technology
The 0.4mm thick, 18cm Esotec+ woofer is made from MSP (Magnesium Silicate Polymer), a proprietary material that we’ve been using in our speaker cones for decades.
It provides the perfect balance of lightness, stiffness and damping that, combined with its strontium carbonate Ferrite+ ceramic magnet system, reproduces midrange and bass frequencies in perfect balance.
The whole diaphragm is made from one piece of MSP. Rather than gluing on a dust cap or just leaving a hole, this construction makes the cone far more rigid – and means far less physical distortion. It gives a much better physical connection to the voice-coil, which means more of the coil’s motion energy is transferred to the diaphragm via the Balance Ribs around the centre.
Evoke 20’s 52mm voice-coil is made from aluminium. We chose that over copper for this speaker because it gives the correct balance of weight and winding height to give bass frequencies power and enough mechanical and electrical damping, while also letting midrange frequencies (where a vast amount of musical detail lies) sing through clearly.
An aramid fibre spider keeps everything centred and moving the way it should, while the seamless Contour-derived surround allows a longer throw ratio for greater power and punch.
The Cerotar tweeter
The tweeter is an original design. It’s called Cerotar, and is based on key technologies from our award-winning Esotar Forty anniversary tweeter and the mighty Esotar3, which you’ll find in the top-of-the-line Confidence series.
Like all our other tweeters, it’s a 28mm unit and uses a precision-coated soft dome. This coating is applied in exactly the correct places and thicknesses to optimise high-frequency performance – it’s a process derived from the development of our most exclusive speakers.
But that’s where the similarity to everything except Confidence ends. Hidden behind the dome is a part called the Hexis: a special inner dome that shapes airflow to smooth-out the frequency response and eliminate unwanted resonances that would affect high-frequency performance.
As with the Esotec+ woofer, it’s driven by a strontium carbonate Ferrite+ ceramic magnet for increased sensitivity, improved detail resolution and a natural, dynamic response.
That’s all a posh way of saying “it sounds really sweet, and you can listen to it for hours without even a hint of fatigue”. Time to get those prog-rock quadruple gatefold albums out of the attic…
A design for life
Our design department took field trips to show-homes, home-interiors stores and real-life dwellings in Denmark to hone Evoke 20’s look. It was important for them to be able to imagine the speakers in a variety of living spaces – because, after all, that’s how most people listen. They’re on a couch, with a coffee, and a dog… these speakers had to be hygge.
That’s why the four finishes are so relatable. You can choose from Black High Gloss and White High Gloss (which both use improved lacquering techniques for a stunning glass-like surface), as well as the warm and organic open-veneered Walnut Wood and Blonde Wood styles.
The cabinets themselves are tapered and rounded in a nod to the Contour and Confidence ranges. The mounting screws are hidden behind stylish one-piece trim rings. And because good design doesn’t age, you know they’ll look every bit as stylish when you’re still listening to them in 30 years.
Which, we hope, you will be.
