| Evolution
2 series |
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| Evolution
2 - The Evolution 2 from Wharfedale is the successor
to the acclaimed Pacific Evolution loudspeaker. Evolution 2 continues
to reinforce Wharfedale's aim of introducing components, materials
and production methods that are normally reserved for high end loudspeakers;
and producing speakers that are not only affordable and practical,
but have a great deal of value for money! |
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Advanced
production
Most of the upgrades for the Evolution 2 series have been
made internally, through the use of advance production techniques,
better quality of materials and components. But it is the
attention to detail that makes this series of speaker so desirable.
Internal upgrades
The Drivers and tweeter have been re-engineered to become
much more responsive and dynamic. A die-cast low-profile chassis
is now used on all the drivers making them more rigid and
reducing mid-range distortion. A new tweeter utilising a high-temperature
aluminium voice coil, thermally coupled to an integrated heat-sink,
increases the high frequency response beyond 30kHz with superb
control and class leading clarity and detail.
Classic looks
Aesthetically the speaker remains similar to the previous
Evolution, smooth lines and a modern style allow the speakers
to cater the tastes of today’s hi-fi enthusiast, and
gives a performance with both film and music that is a rare
find.
It
is the movement of current through the 'voice-coil 'that produces
the magnetic field to drive a loudspeaker. It stands to reason
then, that the quality of the voice coil is paramount to the
performance of that loudspeaker. At Wharfedale, each voice
coil is wound from very pure copper to exceptionally tight
tolerances.
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In
order to extract the maximum amount of signal information and, hence,
detail, the mid-range coils are double wound and the bass voice coils
are quadruple wound. Whilst this has a subtle effect on sensitivity,
the rewards in terms of resolution and accuracy far outweigh any loss
of sensitivity -particularly in view of the power available from the
majority of modern amplifiers.
Curved Cabinet: Perhaps the toughest problem any loudspeaker
designer has to address is the issue of standing waves in cabinets.
When a loudspeaker has flat, parallel sides, these waves are produced
within the cabinet from the back of the drive units. These bounce
back and forward inside the cabinet continuing to resonate long after
the not itself has finished and produce a distinctive boxy dullness
to music. |
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Because
standing waves in cuboid loudspeakers are of quite high amplitude,
they affect the entire balance of the music, masking the bass detail
and even have an impact on higher frequencies. History has seen many
attempts to combat this, ranging from internal damping to acoustically
absorbent baffle materials. But, by far the most successful method
to date has proved to be producing curved cabinets. Unfortunately
though, until recently, the technology needed to manufacture such
cabinets has made them extraordinarily expensive. Wharfedale has developed
new manufacturing techniques over the last two years which enable
them to produce these cabinets at a fraction of the previous cost.
The results are quite astonishing. Not only are standing waves significantly
reduced in the new cabinet design, the overall operating 'noise floor'
of the loudspeaker is low red as a consequence of the changes. This
means improvements throughout the frequency range, a flatter more
consistent frequency response, and, of course huge improvements in
bass detail. The curved front baffle also improves the dispersion
characteristics of the sound. Because the drivers are right at the
front of the cabinet, front baffle diffractions that can also impede
the sound quality are reduced. A liberal amount of complex internal
bracing is used, both to isolate drivers, improve cabinet rigidity
and to further reduce cabinet resonance. |
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Specifications:
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EVO2-8 |
EVO2-30 |
EVO2-Centre |
| Bass
Mid
Soft
Dome Tweeter |
5"
125 mm B/M
---
1"
25mm |
6.5"
170mm
6.5"
170mm B/M
1"
25mm |
5"
125 mm
x 2
---
1"
25mm |
| Recommended
Amp Power (RMS) |
30-150W
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50-250W |
30-200W |
| Nominal
Imp. |
6
Ohms* |
6
Ohms* |
6
Ohms* |
| SPL
1W @ 1m |
87dB |
89dB |
89dB |
| Frequency
Response +/- 3dB |
65Hz
- 28kHz |
35Hz
- 28kHz |
90Hz
- 35kHz |
| Crossover
Frequency |
2.0kHz |
150Hz,
2.2kHz |
2.4kHz |
| System
Fb |
50Hz |
35Hz |
90Hz |
| Magnetic
shielding |
Yes |
Yes |
Yes |
| Dimensions
(HxWxD) mm |
330
×
185 × 336 |
920
× 229 × 400 |
185
x 420 x 300 |
| Net
weight |
7.0kg
x 2 |
20.8kg
x 2 |
8.95kg |
| Gross
weight |
15.5kg |
46.0kg |
10.0kg |
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*
All loudspeakers are compatible with 8 Ohm amplifier outputs. |
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