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Sonus Sonetto III vs Sonus Sonetto Center I Comparison

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Sonus Sonetto III

Passive Floor-standing | 42-25k Hz

Sonus Faber Sonetto III
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Sonus Sonetto Center I

Passive Center Channel | 60-25k Hz

Sonus Faber Sonetto Center I
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Sonus Sonetto III Sonus Sonetto III
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Sonus Sonetto Center I Sonus Sonetto Center...
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Sonus Sonetto III
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Sonus Sonetto Center...
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Sonus Sonetto III vs Sonus Sonetto Center I Speaker Comparison

In this review, we will be comparing two different type of speakers by Sonus Faber. Sonus Faber Sonetto III is a Floor-standing speaker whereas the Sonetto CI is a Center Channel speaker.

Let's have a brief look at the main features of Sonus Sonetto III and Sonus Sonetto Center I first before getting into our more detailed comparison.

Sonus Sonetto III Key Specs

  • 3-way Design
  • 1.15" high definition DAD Dome Tweeter
  • 6" Midrange
  • 2 x 6" aluminum cone Woofer
  • 42-25k Hz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 4ohms
  • Power Range:50-250watts
  • Weight:16.00kg
  • Dimensions (H x W x D): 1018.0" x 9" x 12"( 1018.0 x 219.0 x 305.0mm )

Sonus Sonetto Center I Key Specs

  • 2-way Design
  • 1.15" high definition DAD Dome Tweeter
  • 2 x 6" aluminum cone Woofer
  • 60-25k Hz Frequency Response
  • 90 dB Sensitivity
  • Impedance: 4ohms
  • Power Range:50-200watts
  • Weight:6.50kg
  • Dimensions (H x W x D): 242.0" x 20" x 12"( 242.0 x 495.0 x 303.0mm )

Sonetto III and Sonetto CI are members of Sonus Faber's Sonetto series of speakers. Below you can find the loudspeakers from this series.

Sonus Faber Sonetto Series History
Model Body Frequency SensitivityImpedance Woofer
Sonus Sonetto III
Floor-standing 42-25k Hz 89 dB4Ω 2 x 6"
Sonus Sonetto V
  
Floor-standing 38-25k Hz 90 dB4Ω 2 x 7"
Sonus Sonetto II
  
Bookshelf 42-25k Hz 87 dB4Ω 1 x 6.5"
Sonus Sonetto VIII
  
Floor-standing 36-25k Hz 90 dB4Ω 3 x 7"
Sonus Sonetto I
  
Bookshelf 45-25k Hz 87 dB4Ω 1 x 6"
Sonus Sonetto Center II
  
Center Channel 42-25k Hz 91 dB4Ω 2 x 6"
Sonus Sonetto Center I
Center Channel 60-25k Hz 90 dB4Ω 2 x 6"

What size room are the Sonus Sonetto III and Sonus Sonetto Center I 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 III Sonus Sonetto Center I
Near-field Bad Poor
Small Room Poor Average
Mid-size Room Average Good
Large Room Good Average
Very Large Room Average Poor

(* 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 III and Sonus Sonetto Center I compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Drivers

One of the fundamental differences between these two speakers is that Sonetto III is a 3-way design whereas the Sonetto CI 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 Sonus Sonetto III Sonus Sonetto Center I
Driver Setup 3-way 2-way
Tweeter 1.15-inch 1.15-inch
Midrange 1 x 6-inch -
Woofer 2 x 6-inch 2 x 6-inch

Sonetto III features a 1.15" high definition DAD Dome Tweeter , a 6" Midrange and 2 x 6" aluminum cone Woofer with a Crossover frequency at 220 and 3.250 Hz. On the other hand, the Sonetto CI features a 1.15" high definition DAD Dome Tweeter and 2 x 6" aluminum cone Woofer with a Crossover frequency at 1.550 Hz.

Frequency Response

Sonetto III has a frequency range of 42-25k Hz whereas Sonetto CI has a frequency range of 60-25k Hz. With a minimum frequency of 42Hz, the Sonetto III can go significantly deeper on the low side and provide stronger bass compared to the Sonetto CI's min frequency of 60Hz.

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 Floor-standing class in our database.

Low Frequency

Floor-standing Speakers

Sonetto III
Sonetto CI
Min
Average
Max
High Frequency

Floor-standing Speakers

Sonus Sonetto III
Sonus Sonetto Center I
Min
Average
Max

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 III and Sonetto CI have the same Impedance of 4 ohms but where they differ is the sensitivity levels. Sonetto III sensitivity is rated at 89 dB and the Sonetto CI's is at 90 dB. This 1 dB difference makes the Sonus Sonetto Center I a more sensitive speaker compared to Sonus Sonetto III, 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 III and the Sonetto III can provide this impedance level.

Sensitivity

Floor-standing Speakers

Sonetto III
Sonetto CI
Min
Average
Max

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 III can handle a max power of 250 watts RMS from the amp the whereas Sonetto CI has a max power handling value of 200 watts RMS, 50 watts less than the Sonetto 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 III and Sonetto CI features dual binding post speaker terminals for bi-amping or bi-wiring.

Sonus Sonetto III Terminals
Sonus Sonetto III's Binding post terminals allows Bi-amping or bi-wiring

Sonus Sonetto Center IBinding post Terminals
Sonus Sonetto Center I's Binding post terminals allows Bi-amping or bi-wiring

Cabinet Type and Port Position

Sonetto III has a bottom firing port whereas Sonetto CI has a rear firing ports. Sonus Sonetto III's bottom-firing port gives more flexibility in placement in regards to proximity to walls compared to Sonus Sonetto Center I 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 III's and Sonus Sonetto Center I's external dimensions. Sonus Sonetto III has external dimensions of 1018.0 x 219.0 x 305.0mm ( 40 x 9 x 12inch) whereas Sonus Sonetto Center I has external dimensions of 242.0 x 495.0 x 303.0mm ( 10 x 20 x 12inch) .

Sonus Sonetto Center I is 776mm shorter and 2mm less deeper than Sonus Sonetto III but it is also 276mm wider.

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 III is approximately 668.0cm2 / 103.5inch2 and base area of the Sonus Sonetto Center I is approximately 1499.9cm2 / 232.5inch2. The Sonetto III requires 55% less surface area than the Sonetto CI which gives it a small advantage on placement in tight spaces.

What's in the Box of Sonus Sonetto III?

Here are the items that are included inside the box of Sonetto III:
  • 8 Spikes
  • 8 Under Spikes
  • 8 Spike locks
  • 2 Masks
  • 2 Fabric dust guards
  • 2 Basis
  • 16 Locking screws
  • 2 Jumpers
  • 1 Allen Wrench
  • 1 Manual
  • What's in the Box of Sonus Sonetto Center I?

    Here are the items that come with the Sonetto CI:
  • 1 Masks
  • 1 Fabric dust guards
  • 1 Basis
  • 2 Jumpers
  • 1 Manual

  • Reasons to choose Sonus Faber Sonetto III over Sonus Faber Sonetto Center I
    Max Input Power 250 watts vs 200 watts Handle more power from your amplifier
    Driver Setup 3-way vs 2-way Have a dedicated mid-range driver
    Low Frequency Response 42 Hz vs 60 Hz Generates deeper bass
    Base Surface Area 668cm2 vs 1499cm2 Takes less floor space

    Reasons to choose Sonus Faber Sonetto Center I over Sonus Faber Sonetto III

    Sensitivity 90 dB vs 89 dB Play louder with same amount of amplification power
    Height 242mm vs 1018mm Easier to fit in smaller spaces
    Sonus Sonetto III vs Sonus Sonetto Center I Specs Table
    Detailed comparison of specifications
    General Sonus Faber Sonetto III Sonus Faber Sonetto Center I
    Brand Sonus Faber Sonus Faber
    Speaker Type Floor-standing speaker Center channel speaker
    Power Range 50-250 watts 50-200 watts
    Sensitivity 89 dB 90 dB
    Impedance 4 ohms 4 ohms
    Frequency Response 42-25k Hz 60-25k Hz
    Drivers
    Woofer Quantity 2 2
    Woofer Size 6" 6"
    Woofer Composition aluminum cone aluminum cone
    Tweeter Size 1.15" 1.15"
    Tweeter Type high definition DAD Dome high definition DAD Dome
    Aimable Tweeter No No
    Midrange Driver 6" No
    Crossover Frequency 220 and 3.250 Hz 1.550 Hz
    Firing Direction bottom rear
    Physical Specs
    Height 1018.0mm (40.1") 242.0mm (9.5")
    Width 219.0mm (8.6") 495.0mm (19.5")
    Depth 305.0mm (12") 303.0mm (11.9")
    Weight 16.00kg (35.2lbs) 6.50kg (14.3lbs)
    Enclosure Bass Reflex Bass Reflex
    Available Colors Wood, White, Black, Wenge Wood, White, Black, Wenge
    Moisture Resistancy No No
    Connections
    Biamp Inputs Yes Yes
    Other
    Parts Warranty
    Labor Warranty

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