As SEAS explains, "the driver has been an ongoing project during 2016. The SEAS R&D team has designed, developed and tested the unit, and it is safe to say that this has turned out to be a premium driver. We are very pleased with the listening tests so far, and we are excited to introduce this to the market."
The FEA18RCZ is an 18cm (6.5”) full range driver offering excellent (measured) efficiency and extended bandwidth in a more compact package. Combining a blue-grey paper cone reinforced with papyrus fibres, a high frequency cone directly coupled to the voice coil, and a flexible surround made from a low loss rubber material with minimal damping properties, the FEA18RCZ becomes immediately recognizable.
As SEAS details, the large spider provides low mechanical resistance, and offers excellent stiffness linearity. A heat resistant, non-conductive glass fibre coil former allows a high mechanical Q-factor of the moving system, while a large ferrite ring magnet offers a high magnetic gap flux in a cost efficient way. The pole piece is prolonged forward and equipped with a long copper cap to ensure excellent linearity in the force factor and coil inductance.
Lots of attention has also been paid to the mechanical aspects. A stiff and stable injection moulded zinc chassis keeps the critical components in perfect alignment, with large windows in the chassis, both above and below the spider, reducing sound reflexions, airflow noise and cavity resonance to a minimum.
"Overall, the FEA18RCZ offers excellent efficiency and extended bandwidth in a compact package. Driven by low to medium power, high quality amplifiers from good signal sources, this driver is capable of providing high quality sound reproduction," they add.
On its website, SEAS has provided an application note using the new FEA18RCZ, with a design that the company says "offers the listener a loudspeaker system with a precise, coherent and
engaging listening experience."