In this review, we will be comparing EVO5.2 and Opticon 1 MK2, two Passive Bookshelf speakers from Wharfedale and DALI.
Let's have a brief look at the main features
of Wharfedale EVO5.2 and DALI Opticon 1 II first before getting into our more
detailed comparison.
Wharfedale EVO5.2 Key Specs
- 3-way Design
- 1.375" AMT (Ribbon) Tweeter
- 2" Midrange
- 6.5" woven Kevlar Woofer
- 44-24k Hz Frequency Response
- 88 dB Sensitivity
- Impedance: 4ohms
- Power Range:25-120watts
- Weight:15.00kg
- Dimensions (H x W x D): 497.0" x 10.2" x 15.4"( 497.0 x 260.0 x 350.0mm )
DALI Opticon 1 II Key Specs
- 2-way Design
- 1.125" Soft-Dome Tweeter
- 4.75" Wood Fiber Woofer
- 62-26k Hz Frequency Response
- 86 dB Sensitivity
- Impedance: 4ohms
- Power Range:25-100watts
- Weight:4.50kg
- Dimensions (H x W x D): 254.0" x 6" x 9-1/4"( 254.0 x 153.0 x 235.0mm )
What size room are the Wharfedale EVO5.2 and DALI Opticon 1 II speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision
factor. Here we have compared their suitability to various sizes of environments considering their size
and max power parameters:
| Listening Environment* |
Wharfedale EVO5.2 |
DALI Opticon 1 II |
| Near-field |
Poor |
Average |
| Small Room |
Average |
Good |
| Mid-size Room |
Good |
Average |
| Large Room |
Average |
Poor |
| Very Large Room |
Poor |
Bad |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2,
Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: >
400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual
listening experience changes depending on floor height, room shape, surface materials, listening
position, speaker locations, etc.)
In the following sections, we will get into more detail in order to better understand how the Wharfedale EVO5.2 and DALI Opticon 1 II compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
One of the fundamental differences between these two speakers is that EVO5.2 is a 3-way design whereas the Opticon 1 MK2 is a 2-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.
| Driver |
Wharfedale EVO5.2 |
DALI Opticon 1 II |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1.375-inch
|
1.125-inch
|
|
Midrange
|
1 x 2-inch |
- |
|
Woofer
|
1 x 6.5-inch
|
1 x 4.75-inch
|
EVO5.2 features a 1.375" SilentWeave cotton and felt damping fiber AMT (Ribbon) Tweeter , a 2" Midrange and 1 x 6.5" woven Kevlar Woofer with a Crossover frequency at 800 Hz and 4.3 kHz. On the other hand, the Opticon 1 MK2 features a 1.125" Soft-Dome Tweeter and 1 x 4.75" Wood Fiber Woofer with a Crossover frequency at 3000Hz.
Frequency Response
EVO5.2 has a frequency range of 44-24k Hz whereas Opticon 1 MK2 has a frequency range of 62-26k Hz. With a minimum frequency of 44Hz, the EVO5.2 can go significantly deeper on the low side and provide stronger bass compared to the Opticon 1 MK2's min frequency of 62Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
EVO5.2 and Opticon 1 MK2 have the same Impedance of 4 ohms but where they differ is the sensitivity levels. EVO5.2 sensitivity is rated at 88 dB and the Opticon 1 MK2's is at 86 dB. This 2 dB difference makes the Wharfedale EVO5.2 a more sensitive speaker compared to DALI Opticon 1 II, hence will play louder with the same amount of watts.
One thing to keep in mind that the lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit comared to higher impedance speakers especially at high volume levels, so make sure the amp you pair with the EVO5.2 and the EVO5.2 can provide this impedance level.
Sensitivity
Bookshelf Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using
an amplifier within this range ensures the nominal performance , inputting a power that is higher than the
max wattage can result in a damaged speaker.
EVO5.2 can handle a max power of 120 watts RMS from the amp the whereas Opticon 1 MK2 has a max power handling value of 100 watts RMS, 20 watts less than the EVO5.2.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
EVO5.2 features Post type posts and Opticon 1 MK2 has a Post type posts. None of these speakers feature bi-amping/bi-wiring.
Wharfedale EVO5.2's Binding post terminals
DALI Opticon 1 II's Post terminals
Cabinet Type and Port Position
EVO5.2 has a bottom firing port whereas Opticon 1 MK2 has a rear firing ports. Wharfedale EVO5.2's bottom-firing port gives more flexibility in placement in regards to proximity to walls compared to DALI Opticon 1 II with its rear-firing port.
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Wharfedale EVO5.2's and DALI Opticon 1 II's external dimensions. Wharfedale EVO5.2 has external dimensions of 497.0 x 260.0 x 350.0mm ( 19.6" × 10.2" × 15.4") whereas DALI Opticon 1 II has external dimensions of 254.0 x 153.0 x 235.0mm ( 10 x 6 x 9-1/4inch) .
Wharfedale EVO5.2 is clearly the larger of the two speakers. Its body is 107mm wider, 243mm taller and 115mm deeper than DALI Opticon 1 II.
Below you can see the front view size comparison of Wharfedale EVO5.2 and DALI Opticon 1 II in scale.
Comparison image of Wharfedale EVO5.2 and DALI Opticon 1 II Size and External Dimensions
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the Wharfedale EVO5.2 is approximately 910.0cm2 / 141.1inch2 and base area of the DALI Opticon 1 II is approximately 359.6cm2 / 55.7inch2. The EVO5.2 requires 153% more surface area than the Opticon 1 MK2 which gives it a small disadvantage on placement in tight spaces.
Here is an another comparison that shows both speakers on a BDI Octave Media Cabinet, next to a standard size amplifier and turntable in scale:
Size Comparison image of Wharfedale EVO5.2 and DALI Opticon 1 II on a Media Console