In this review, we will be comparing two different type of speakers by Sonus Faber. Sonus Faber Sonetto II is a Bookshelf speaker whereas the Lumina III is a Floor-standing speaker.
Let's have a brief look at the main features
of Sonus Sonetto II and Sonus Lumina III first before getting into our more
detailed comparison.
Sonus Sonetto II Key Specs
- 2-way Design
- 1.15" high definition DAD Dome Tweeter
- 6.5" cellulose pulp and other natural fibers Woofer
- 42-25k Hz Frequency Response
- 87 dB Sensitivity
- Impedance: 4ohms
- Power Range:40-200watts
- Weight:6.80kg
- Dimensions (H x W x D): 370.0" x 10" x 13"( 370.0 x 250.0 x 334.0mm )
Sonus Lumina III Key Specs
- 3-way Design
- 1.15" high definition DAD Tweeter
- 6" Midrange
- 2 x 6" paper cone Woofer
- 6" Midrange
- 40-24k Hz Frequency Response
- 89 dB Sensitivity
- Impedance: 4ohms
- Power Range:50-250watts
- Weight:15.90kg
- Dimensions (H x W x D): 989.0" x 9" x 10.9"( 989.0 x 228.0 x 278.0mm )
What size room are the Sonus Sonetto II and Sonus Lumina III 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* |
Sonus Sonetto II |
Sonus Lumina III |
| Near-field |
Poor |
Bad |
| Small Room |
Average |
Poor |
| Mid-size Room |
Good |
Average |
| Large Room |
Average |
Good |
| Very Large Room |
Poor |
Average |
(* 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 Sonus Sonetto II and Sonus Lumina III 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 Sonetto II is a 2-way design whereas the Lumina III is a 3-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 |
Sonus Sonetto II |
Sonus Lumina III |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1.15-inch
|
1.15-inch
|
|
Midrange
|
- |
1 x 6-inch |
|
Woofer
|
1 x 6.5-inch
|
2 x 6-inch
|
Sonetto II features a 1.15" high definition DAD Dome Tweeter and 1 x 6.5" cellulose pulp and other natural fibers Woofer with a Crossover frequency at 2650 Hz. On the other hand, the Lumina III features a 1.15" high definition DAD Tweeter , a 6" Midrange and 2 x 6" paper cone Woofer with a Crossover frequency at 350 and 3500 Hz.
Frequency Response
Sonetto II has a frequency range of 42-25k Hz whereas Lumina III has a frequency range of 40-24k Hz. With a minimum frequency of 40Hz, the Lumina III can go slightly deeper then the Sonetto II's min frequency of 42Hz.
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
Sonetto II and Lumina III have the same Impedance of 4 ohms but where they differ is the sensitivity levels. Sonetto II sensitivity is rated at 87 dB and the Lumina III's is at 89 dB. This 2 dB difference makes the Sonus Lumina III a more sensitive speaker compared to Sonus Sonetto 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 Sonetto II and the Sonetto II 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.
Sonetto II can handle a max power of 250 watts RMS from the amp the whereas Sonetto II has a max power handling value of 200 watts RMS , 50 watts less than the Lumina III.
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
Both Sonetto II and Lumina III features dual binding post speaker terminals for bi-amping or bi-wiring.
Cabinet Type and Port Position
Sonetto II has a front firing port whereas Lumina III has a bottom firing ports. Sonus Sonetto II's front-firing port gives more flexibility in placement in regards to proximity to walls compared to Sonus Lumina III 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 Sonus Sonetto II's and Sonus Lumina III's external dimensions. Sonus Sonetto II has external dimensions of 370.0 x 250.0 x 334.0mm ( 15 x 10 x 13inch) whereas Sonus Lumina III has external dimensions of 989.0 x 228.0 x 278.0mm ( 38.9 x 9 x 10.9inch) .
Sonus Lumina III is 22mm narrower and 56mm less deeper than Sonus Sonetto II but it is also 619mm taller.
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 Sonus Sonetto II is approximately 835.0cm2 / 129.4inch2 and base area of the Sonus Lumina III is approximately 633.8cm2 / 98.2inch2. The Sonetto II requires 32% more surface area than the Lumina III which gives it a small disadvantage on placement in tight spaces.
What's in the Box of Sonus Sonetto II?
Here are the items that are included inside the box of Sonetto II:
2 Masks2 Fabric dust guards2 Jumpers1 Manual
What's in the Box of Sonus Lumina III?
Here are the items that come with the Lumina III:
Floorstanding loudspeaker1 Manual 2 Jumpers2 Grilles 2 Fabric dust guards4 Spikes 4 Under spikes 4 Spikes locks
Woofer Size 
High Frequency Response 
Height 
Max Input Power 
Driver Setup 
Sensitivity 
Base Surface Area