Evo4.4 

Wharfedale’s new EVO 4 has grown out of the extensive research and development that produced the ELYSIAN flagship loudspeakers and borrows much of the technology involved in ELYSIAN.

The primary focus is on the AMT development resulting in a radically different way of reproducing high frequency detail efficiently and accurately. Similar cabinet technology to ELYSIAN provides a stable and solid foundation for the drive units with radiused edges to help integrate the driver output with the room acoustics. In addition the unique SLPP bass reflex system, as developed for ELYSIAN, is now incorporated in EVO 4

EVO4 Series

The Dawn of a New Standard

Wharfedale’s new EVO4 has grown out of the extensive research and development
that produced the ELYSIAN flagship loudspeakers and borrows much of the
technology involved in ELYSIAN.
Primary focus is on the AMT development resulting in a radically different way
of reproducing high frequency detail efficiently and accurately. Similar cabinet
technology to ELYSIAN provides a stable and solid foundation for the drive units
with radiused edges to help integrate the driver output with the room acoustics.
In addition the unique SLPP bass reflex system, as developed for ELYSIAN, is now
incorporated in EVO4.

EVO4 AMT

Developed from the advanced AMT in ELYSIAN, EVO4’s Air Motion Transformer
treble unit utilizes a radically different way of moving air compared to the
conventional dome tweeter. A large, pleated lightweight diaphragm is driven across
its surface by rows of strategically placed magnets. Not only is this an efficient way
of moving air but it is also very accurate as the diaphragm is under close control
of the motor system at all times. The result is a wide bandwidth transducer that
achieves low distortion naturally and delivers wonderful musical detail.

EVO4 Dome Midrange

To match to the EVO4 AMT, Wharfedale has developed a fast and responsive
dome midrange with wide bandwidth thanks to the incorporation of a damped
rear chamber. This soft fabric dome, damped with a plasticizer coating, is vented
aperiodically into a specially shaped rear chamber that is profiled to scatter and
absorb rear energy from the dome. As a result this dome midrange features a
linear response from 800Hz to 5kHz, an astonishing bandwidth from such a unit.
Thanks to its high flux magnet, the EVO4 midrange dome also has a high efficiency,
ideally matched to that of the AMT, enabling it to respond easily and quickly to
the dynamics of the music fed to it. The wide dispersion of this dome and AMT
combination ensures that you’ll hear all the musical detail no matter where you sit.

EVO4 Bass

Utilizing the advanced, low distortion motor system developed for the ELYSIAN
bass units, EVO4 marries this to a woven Kevlar cone fitted with a low loss rubber
surround, giving a wide bandwidth driver which is equally adept at producing
powerful bass in addition to a natural lower midrange quality.
Like ELYSIAN, the bass units are loaded by the most advanced version of the
unique Wharfedale Slot Port yet. Christened SLPP (Slot Loaded Profiled Port) the
rear output of the bass units is not wasted. Instead the lowest frequency energy is
vented to a slot at the base of the speaker, specially profiled to equalize the high
internal pressure to the low pressure in the room.

EVO4 Crossover

Combining the outputs of the drivers is an advanced computer modeled crossover
that has been developed over hundreds of hours of listening tests, fine tuned to
make sure that the blend between the drive units is seamless.
Crossover components have been specially chosen for their audio transparency and
feature high-grade polypropylene capacitors and laminated silicon-iron and air core
inductors, laid out to avoid electro-magnetic interference on a specially designed
circuit board.