EVO 5.4
High Frequency Unit
The EVO series concept originated from the same thorough research and development processes that characterised Wharfedale’s flagship Elysian project. It was specifically designed to bridge the gap between affordability and high-end performance. A notable feature of this series is the EVO AMT (Air Motion Transformer) high-frequency unit.
A Distinctive Approach to High Frequencies
AMT Tweeter for Precision and Detail: In developing the new EVO 5 series, Wharfedale has further evolved the cutting-edge Air Motion Transformer (AMT). The AMT is a type of high-frequency driver used in speakers, known for its exceptional accuracy, speed, and low distortion compared to traditional dome treble units.
Instead of using a conventional dome or cone to push air forward, an AMT uses a pleated diaphragm made of an ultra-thin, lightweight material (often a polymer film). Strong magnets are positioned on either side of the diaphragm, creating a powerful magnetic field. When an audio signal is passed through the conductive traces, the diaphragm is energised, causing the pleats to contract and expand. As the pleats move, they "squeeze" and "expand" the air between them, pushing it out in a highly controlled and eficient manner. This method allows the AMT to move four times more air than a traditional dome tweeter of the same surface area, leading to lower distortion (since the diaphragm moves less than a typical dome or ribbon), faster transient response (due to the lightweight material and minimal movement), wider frequency range and better dispersion.
The EVO 5 AMT goes further with Revolutionary Sound
Absorption and Damping Enhancements
A new sound-absorbing material, Silentweave™, has been added to the cavity behind the diaphragm to reduce sound wave reflection and sound colouration inside the speaker. This material, a combination of cotton and felt fibre, was specially developed for the EVO 5 series.
All EVO 5 drive units benefit from a new acoustic damping frame called ResoFrame™, made from elastomer and visible as a cog-like shape within the driver’s front panel. In the case of the AMT, an additional elastomer damping gasket between the diaphragm and the front plate further reduces mechanical resonances and smooths the response, especially in the important lower treble band.
These Internal Acoustic enhancements minimize unwanted sound coloration, ensuring a purer, more natural sonic signature. This smoother treble response delivers a listening experience that is crisp, controlled, and devoid of harshness.
Lower-Midrange and Bass Refinements for Unparalleled Vocal Reproduction
Enhanced Midrange: A new technique, labelled Resoseal™, sees a thin mass ring of elastomer applied to the rear of the cone where it meets the surround. This further optimises midrange frequency response, allowing vocals to sound richer, more naturaLower-Midrange and Bass Refinements for Unparalleled Vocal Reproductionl, and more emotionally engaging. This subtle yet critical enhancement ensures a refined and immersive listening experience.
Reengineered Cabinetry for Superior Resonance Control
Each model in the EVO 5 series now features an optimally increased internal cabinet volume. The expanded cabinet volume contributes to deeper bass extension and improved overall sound dispersion, creating a more immersive and expansive audio field.
The inclusion of a hybrid plinth, which combines metal and wood elements of the cabinet’s details, enhances structural integrity and reduces unwanted vibrations. This innovative base ensures that sound remains clean and uncoloured, free from external resonance artefacts.
Next-Generation Slot-Loaded Port Design
Wharfedale’s proprietary Slot Loaded Profiled Port (SLPP) system effciently channels the rear output of the bass drivers into the room. The specially designed slot at the speaker's base equalises pressure to the room, reducing turbulence while enhancing low-frequency performance.
The EVO 5 Series debuts a groundbreaking three-directional SLPP (Slot Loaded Profiled Port) channel. Unlike the previous two-directional port in EVO 4, this system optimises airflow distribution, reducing turbulence and distortion. This refined engineering allows the speakers to produce profound yet controlled bass without the muddiness common in conventional bass reflex designs. The result is exceptionally well-defined, tight bass that integrates seamlessly with mid and high frequencies.
Specifications
EVO 5.4
General description 3-way bookshelf speaker
Enclosure type Bass reflex
Transducer complement 3-way
Bass driver 6.5"(165mm) Black Woven Kevlar Cone x2
Midrange driver 2"(50mm) Soft Dome
Treble driver 35 x 70mm AMT
Sensitivity (2.83V @ 1m) 90db
Recomended amplifier power 25-200Watts
Peak SPL 108dB
Nominal impedance 4Ω (8Ω compatible)
Minimum impedance 4.3Ω
Frequency response (+/-3dB) 42Hz - 24kHz
Bass Extension (-6dB) 36Hz
Cross over frequency 1.1Hz,4kHz
Cabinet volume (in litres) 59.5L
Height (on plinth & spike) 1028mm
Width 302mm
Depth (with grille+terminal) (350 + 40)mm
Carton size 495 x390 x 1185mm
Net weight 31.2kgs/pcs
Gross weight 33.2kg/ctn
Standard accessories spike seat
