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  1. Home
  2. Sonus faber Speakers
  3. Sonus Sonetto II vs Sonus Sonetto Center I

Sonus Sonetto II vs Sonus Sonetto Center I Comparison

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Sonus Sonetto II

Passive Bookshelf | 42-25k Hz

Sonus faber Sonetto II
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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 II Sonus Sonetto II
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Sonus Sonetto Center I Sonus Sonetto Center...
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Sonus Sonetto II
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Sonus Sonetto Center...
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Sonus Sonetto II vs Sonus Sonetto Center I Speaker Comparison

In this review, we will be comparing two different types of speakers by Sonus faber. Sonus faber Sonetto II is a Bookshelf speaker whereas the Sonetto CI is a Center Channel speaker.

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

Key SpecsSonus Sonetto IISonus Sonetto Center I
BrandSonus faber
Italy · founded 1983
Sonus faber
Italy · founded 1983
Design2-way2-way
Tweeter1.15" high definition DAD Dome1.15" high definition DAD Dome
Woofer6.5" cellulose pulp and other natural fibers2 x 6" aluminum cone
Frequency response42-25k Hz60-25k Hz
Sensitivity87 dB90 dB
Impedance4 ohms4 ohms
Power range40-200 watts50-200 watts
Weight6.80kg / 15lbs6.50kg / 14.3lbs
Dimensions (H x W x D)14.6" x 10" x 13"
370.0 x 250.0 x 334.0mm
9.5" x 19.5" x 12"
242.0 x 495.0 x 303.0mm

Sonetto II 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 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 V
  
Floor-standing 38-25k Hz 90 dB4Ω 2 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"
Sonus faber Sonetto III G2
  
Floor-standing 38-40k Hz 88 dB4Ω 2 x 6.5"
Sonus Faber Sonetto Center G2
  
Center Channel 45-40k Hz 88 dB4Ω 2 x 6-1/2"
Sonus faber Sonetto VIII G2
  
Floor-standing 33-40k Hz 90 dB4Ω 2 x 8"

What size room are the Sonus Sonetto II 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 II Sonus Sonetto Center I
Near-field Poor Poor
Small Room Average Average
Mid-size Room Good Good
Large Room Average Average
Very Large Room Poor 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.)

The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.


Drivers

Both Sonetto II and Sonetto CI are 2-way speakers.

Tweeter - 1.15 inchWoofer - 6.5 inch
Sonus Sonetto II
Woofer - 6 inchTweeter - 1.15 inchWoofer - 6 inch
Sonus Sonetto Center I

TweeterWoofer

Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.

Driver Sonus Sonetto II Sonus Sonetto Center I
Driver Setup 2-way 2-way
Tweeter 1.15-inch 1.15-inch
Midrange - -
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 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.

Sonus Sonetto II driver frequency bandsSonus Sonetto IISonus Sonetto Center I42-2.7k60-1.6kWoofer2.7k-25k1.6k-25kTweeter20501002005001k2k5k10k20k40kHz, log scale

Frequency Response

Sonetto II 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 II can go significantly deeper on the low side and provide stronger bass compared to the Sonetto CI's min frequency of 60Hz.

The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.

Low Frequency

Bookshelf Speakers

Sonetto II
Sonetto CI
Min
Average
Median

Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.

Impedance and Sensitivity

Sonetto II and Sonetto CI 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 Sonetto CI's is at 90 dB. This 3 dB difference makes the Sonus Sonetto Center I 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

Sonetto II
Sonetto CI
Min
Average
Median

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.

Both handle the same maximum of 200 watts RMS, though Sonetto II is rated 40-200 watts and Sonetto CI 50-200 watts.

Note that higher power handling does not make a speaker louder: that depends mainly on sensitivity and impedance. The calculator below shows how loud each of these actually plays on a real amplifier.

Which plays louder on your amplifier?

Starting with a popular amplifier - change it to the one you own, or any you are considering, and watch both numbers move.

Sonus Sonetto II
 
Sonus Sonetto Center I
 

Input Type and Bi-Amping / Bi-Wiring

Both Sonetto II and Sonetto CI features dual binding post speaker terminals for 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 II has a front firing port whereas Sonetto CI has a rear firing ports. Sonus Sonetto II's front-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

The size of a speaker can sometimes be 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 Sonetto Center I'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 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 128mm shorter and 31mm less deeper than Sonus Sonetto II but it is also 245mm 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 II is approximately 835.0cm2 / 129.4inch2 and base area of the Sonus Sonetto Center I is approximately 1499.9cm2 / 232.5inch2. The Sonetto II requires 44% 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 II?

Here are the items that are included inside the box of Sonetto II:
  • 2 Masks
  • 2 Fabric dust guards
  • 2 Jumpers
  • 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 II over Sonus faber Sonetto Center I

Woofer Size 6.5 inches vs 6 inches Larger woofer
Low Frequency Response 42 Hz vs 60 Hz Generates deeper bass
Port Position Front vs Rear Gives more flexibility placing close to walls
Base Surface Area 835cm2 vs 1499cm2 Takes less floor space

Reasons to choose Sonus faber Sonetto Center I over Sonus faber Sonetto II

Sensitivity 90 dB vs 87 dB Play louder with same amount of amplification power
Number of Woofers 2 vs 1 More woofers
Height 242mm vs 370mm Easier to fit in smaller spaces
Price per pair* 1099USD vs 1499USD costs less (*prices may change depending on the seller, location and time)

Sonus Sonetto II vs Sonus Sonetto Center I Specs Table

Detailed comparison of specifications
General Sonus faber Sonetto II Sonus faber Sonetto Center I
Brand Sonus faber Sonus faber
Speaker Type Bookshelf speakers Center channel speaker
Power Range 40-200 watts 50-200 watts
Sensitivity 87 dB 90 dB
Impedance 4 ohms 4 ohms
Frequency Response 42-25k Hz 60-25k Hz
Drivers
Woofer Quantity 1 2
Woofer Size 6.5" 6"
Woofer Composition cellulose pulp and other natural fibers aluminum cone
Tweeter Size 1.15" 1.15"
Tweeter Type high definition DAD Dome high definition DAD Dome
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency 2650 Hz 1.550 Hz
Firing Direction front rear
Physical Specs
Height 370.0mm (14.6") 242.0mm (9.5")
Width 250.0mm (9.8") 495.0mm (19.5")
Depth 334.0mm (13.1") 303.0mm (11.9")
Weight 6.80kg (15lbs) 6.50kg (14.3lbs)
Enclosure Bass Reflex Bass Reflex
Available Colors Wood, White, Black, Wenge Wood, White, Black, Wenge
Mounting Bracket
Moisture Resistancy No No
Connections
Biamp Inputs Yes Yes
Other
Parts Warranty
Labor Warranty

Verdict

Siblings in Sonus faber's Sonetto series, so they share a family sound. It comes down to size, output and price.

AreaBetterWhy
BassASonus Sonetto II digs deeper - 42Hz against 60Hz.
Amplifier needsBSonus Sonetto Center I is more sensitive (90dB vs 87dB), so it goes louder on the same amplifier.
Headroomevenly matchedSimilar power handling (200W vs 200W).
SizedependsSimilar cabinet size - neither is easier to fit.
TypedependsA Passive Bookshelf against a Passive Center Channel - a different job rather than a better one.
ExpandabilitydependsSonus Sonetto II: bi-amping; Sonus Sonetto Center I: bi-amping.
PriceBSonus Sonetto Center I is cheaper - $1,099 against $1,499, about 27% less.

A Sonus Sonetto II  B Sonus Sonetto Center I
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.

Which should you choose?

Neither runs away with it - they trade advantages. Let the "depends" rows and your own room settle it. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 60Hz anyway, which makes the cheaper Sonus Sonetto Center I much easier to justify. If your amplifier is modest, vintage or valve-based, Sonus Sonetto Center I is the safer partner - the other will want more current or more watts to sound its best.

And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.


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