Dynaudio Evoke 25C centre speaker

Updated woofer technology

Evoke 25C’s twin 14cm Esotec+ mid/bass drivers are made from MSP (Magnesium Silicate Polymer), a material we’ve been using for our woofer diaphragms since the dawn of Dynaudio. It provides exactly the right combination of lightness, stiffness and damping to balance the needs of precise bass performance with clear, detailed midrange.

Each speaker cone is crafted from a single piece of MSP. This makes them exactly the right amount of rigid – and means far less physical distortion when they’re playing. It also gives a super-solid physical connection to the glass-fibre voice-coil former on the back (it’s glued directly under the Balance Ribs you’ll see around the centre), which means more of the coil’s motion energy is transferred to the diaphragm.

The 38mm voice-coils themselves are made from aluminium, making them extremely light. That means we can use more windings. More windings gives us more control over the cone’s movement, which means more control over the sound – even at high volumes and high frequencies. That’s especially important in a centre speaker, which predominantly deals with speech – its midrange performance has to be absolutely top-notch.

The woofer motor is kept stable, centred and true by the Nomex spider (the circular spring assembly that stops the cone moving when it shouldn’t, and lets it move when it should), while the Contour-derived surround allows a longer throw ratio for greater punch. And, like the Cerotar tweeter, the woofers are both driven by ceramic Ferrite+ magnets for greater control, finesse and power.

In non-speaker-designer language, that means “you’ll hear your movie the way it was meant to be heard”. No rough edges, nothing standing out where it shouldn’t – and nothing relegated to a cameo when it should be the lead.