SpeakerDecision
  • SPEAKERS
    • By Type
      Passive Bookshelf Speakers Passive Floor-standing Speakers Passive Center Channel Speakers Passive In-wall Speakers All Passive Speakers Powered Subwoofers Powered Stereo Speakers
      By Feature
      HDMI Input Room Correction Subwoofer Output Front Firing Port Handheld Remote Roon Ready
      By Brand
      Acoustic Energy Aperion ATC Audio-Technica Audioengine Bluesound Bowers Wilkins Buchardt Cambridge Audio Canton DALI Definitive Technology Dynaudio ELAC Emotiva Fluance Focal Fyne Audio Genelec GoldenEar Harbeth Jamo JBL Kanto KEF KLH Klipsch Leak Mackie Magnepan MartinLogan McIntosh Mission MoFi Monitor Audio Nuvo Onkyo OSD Paradigm Perlisten Polk Audio PS Audio PSB Q Acoustics REL Revel Russound Sennheiser Sonos Sonus faber Sony Spendor SVS Tannoy Technics Triangle Velodyne Victrola Wharfedale Wilson Audio Yamaha
  • AMPLIFIERS
    • By Type
      All Amplifiers Integrated Amplifiers Stereo Receivers Streaming Amplifiers Power Amplifiers Compact Amplifiers
      By Power
      Up to 60 watts 61 to 90 watts 91 to 120 watts 121 to 180 watts Over 180 watts
      By Feature
      HDMI Input Room Correction Subwoofer Output Handheld Remote Roon Ready
      Home Theater
      All Home Theater Receivers Anthem ARCAM Denon Integra JBL Marantz McIntosh NAD Onkyo Sony Yamaha
      Headphone Amps
      All Headphone Amplifiers Cambridge Audio iFi Audio McIntosh Naim Pro-Ject Rotel Schiit Audio Sennheiser Yamaha
      Multi-Zone
      All Multi-Zone Amplifiers JBL McIntosh OSD Rotel Russound Sonos
      By Brand
      Accuphase Advance Paris Anthem Arcam Audio Research AudioControl Audioengine Audiolab Bluesound Bose Buchardt Cambridge Audio Denon Devialet ELAC Emotiva Eversolo FiiO Fosi Audio Hegel HiFi Rose Integra JBL LEAK Luxman Marantz Mark Levinson McIntosh Michi MISSION MOON Musical Fidelity NAD Naim Onkyo OSD Parasound Pass Labs Peachtree PrimaLuna Primare PS Audio Rega Rogue Audio Roksan Rotel Schiit Audio Sonos Sony SVS T+A TEAC Technics Vincent WiiM Yamaha
  • SMART FIND
  • TOOLS
  • BLOG
  1. Home
  2. Sonus faber Speakers
  3. Sonus Sonetto Center II vs Sonus Sonetto I

Sonus Sonetto Center II vs Sonus Sonetto I Comparison

x
Speaker to replace
Change

Sonus Sonetto Center II

Passive Center Channel | 42-25k Hz

Sonus faber Sonetto Center II
Check price atAmazon›
Change
    
Sonus Sonetto I

Passive Bookshelf | 45-25k Hz

Sonus faber Sonetto I
Check price atAmazon›
Sonus Sonetto Center II Sonus Sonetto Center...
Check price atAmazon›
Sonus Sonetto I Sonus Sonetto I
Check price atAmazon›
Sonus Sonetto Center...
See at AMAZON
Sonus Sonetto I
See at AMAZON

Sonus Sonetto Center II vs Sonus Sonetto I Speaker Comparison

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

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

Key SpecsSonus Sonetto Center IISonus Sonetto I
BrandSonus faber
Italy · founded 1983
Sonus faber
Italy · founded 1983
Design3-way2-way
Tweeter1.15" high definition DAD Dome1.15" high definition DAD Dome
Midrange2 x 6"—
Woofer2 x 6" aluminum cone6" cellulose pulp and other natural fibers
Frequency response42-25k Hz45-25k Hz
Sensitivity91 dB87 dB
Impedance4 ohms4 ohms
Power range50-300 watts30-150 watts
Weight16.20kg / 35.6lbs5.50kg / 12.1lbs
Dimensions (H x W x D)11.4" x 29.3" x 16"
289.0 x 743.0 x 409.0mm
14" x 9" x 12"
359.0 x 219.0 x 305.0mm

Sonetto CII and Sonetto I 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 Center II and Sonus Sonetto 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 Center II Sonus Sonetto I
Near-field Poor Poor
Small Room Poor Average
Mid-size Room Good 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.)

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


Drivers

One of the fundamental differences between these two speakers is that Sonetto CII is a 3-way design whereas the Sonetto I 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.

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

TweeterMidrangeWoofer

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 Center II Sonus Sonetto I
Driver Setup 3-way 2-way
Tweeter 1.15-inch 1.15-inch
Midrange 2 x 6-inch -
Woofer 2 x 6-inch 1 x 6-inch

Sonetto CII features a 1.15" high definition DAD Dome Tweeter, a 6" Midrange and 2 x 6" aluminum cone Woofer with a Crossover frequency at 1.650 Hz. On the other hand, the Sonetto I features a 1.15" high definition DAD Dome Tweeter and 1 x 6" cellulose pulp and other natural fibers Woofer with a Crossover frequency at 2500 Hz.

Sonus Sonetto Center II driver frequency bandsSonus Sonetto Center IISonus Sonetto I42-1.7k45-2.5kWoofer1.7k-25k2.5k-25kTweeter20501002005001k2k5k10k20k40kHz, log scale

Frequency Response

Sonetto CII has a frequency range of 42-25k Hz whereas Sonetto I has a frequency range of 45-25k Hz. With a minimum frequency of 42Hz, the Sonetto CII can go slightly deeper then the Sonetto I's min frequency of 45Hz.

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

Low Frequency

Center Channel Speakers

Sonetto CII
Sonetto I
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 CII and Sonetto I have the same Impedance of 4 ohms but where they differ is the sensitivity levels. Sonetto CII sensitivity is rated at 91 dB and the Sonetto I's is at 87 dB. This 4 dB difference makes the Sonus Sonetto Center II a more sensitive speaker compared to Sonus Sonetto I, 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 CII and the Sonetto CII can provide this impedance level.

Sensitivity

Center Channel Speakers

Sonetto CII
Sonetto I
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.

Sonetto CII can handle a max power of 300 watts RMS, whereas Sonetto I has a max power handling value of 150 watts RMS, 150 watts less than the Sonetto CII.

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 Center II
 
Sonus Sonetto I
 

Input Type and Bi-Amping / Bi-Wiring

Both Sonetto CII and Sonetto I features dual binding post speaker terminals for bi-amping or bi-wiring.

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

Cabinet Type and Port Position

Sonetto CII has a rear firing port whereas Sonetto I has a front firing ports. Sonus Sonetto I's front-firing port gives more flexibility in placement in regards to proximity to walls compared to Sonus Sonetto Center II 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 Center II's and Sonus Sonetto I's external dimensions. Sonus Sonetto Center II has external dimensions of 289.0 x 743.0 x 409.0mm (12 x 30 x 16inch) whereas Sonus Sonetto I has external dimensions of 359.0 x 219.0 x 305.0mm (14 x 9 x 12inch).

Sonus Sonetto I is 524mm narrower and 104mm less deeper than Sonus Sonetto Center II but it is also 70mm 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 Center II is approximately 3038.9cm2 / 471.0inch2 and base area of the Sonus Sonetto I is approximately 668.0cm2 / 103.5inch2. The Sonetto CII requires 355% more surface area than the Sonetto I which gives it a small disadvantage on placement in tight spaces.

What's in the Box of Sonus Sonetto Center II?

Here are the items that are included inside the box of Sonetto CII:
  • 1 Masks
  • 1 Fabric dust guards
  • 1 Basis
  • 2 Jumpers
  • 1 Manual

What's in the Box of Sonus Sonetto I?

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


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

Max Input Power 300 watts vs 150 watts Handle more power from your amplifier
Driver Setup 3-way vs 2-way Have a dedicated mid-range driver
Sensitivity 91 dB vs 87 dB Play louder with same amount of amplification power
Number of Woofers 2 vs 1 More woofers
Low Frequency Response 42 Hz vs 45 Hz Generates deeper bass
Height 289mm vs 359mm Easier to fit in smaller spaces

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

Port Position Front vs Rear Gives more flexibility placing close to walls
Base Surface Area 668cm2 vs 3038cm2 Takes less floor space
Price per pair* 1099USD vs 2199USD costs less (*prices may change depending on the seller, location and time)

Sonus Sonetto Center II vs Sonus Sonetto I Specs Table

Detailed comparison of specifications
General Sonus faber Sonetto Center II Sonus faber Sonetto I
Brand Sonus faber Sonus faber
Speaker Type Center channel speaker Bookshelf speakers
Power Range 50-300 watts 30-150 watts
Sensitivity 91 dB 87 dB
Impedance 4 ohms 4 ohms
Frequency Response 42-25k Hz 45-25k Hz
Drivers
Woofer Quantity 2 1
Woofer Size 6" 6"
Woofer Composition aluminum cone cellulose pulp and other natural fibers
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 1.650 Hz 2500 Hz
Firing Direction rear front
Physical Specs
Height 289.0mm (11.4") 359.0mm (14.1")
Width 743.0mm (29.3") 219.0mm (8.6")
Depth 409.0mm (16.1") 305.0mm (12")
Weight 16.20kg (35.6lbs) 5.50kg (12.1lbs)
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 Center II digs deeper - 42Hz against 45Hz. A subwoofer would even that out.
Amplifier needsASonus Sonetto Center II is more sensitive (91dB vs 87dB), so it goes louder on the same amplifier.
HeadroomASonus Sonetto Center II takes more power (300W vs 150W) - more in hand in a big room.
SizedependsSonus Sonetto I is easier to place; Sonus Sonetto Center II is bigger, which usually goes with fuller bass. Your room decides.
TypedependsA Passive Center Channel against a Passive Bookshelf - a different job rather than a better one.
ExpandabilitydependsSonus Sonetto Center II: bi-amping; Sonus Sonetto I: bi-amping.
PriceBSonus Sonetto I is cheaper - $1,099 against $2,199, about 50% less; arguably a different class.

A Sonus Sonetto Center II  B Sonus Sonetto 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?

The usual trade-off: Sonus Sonetto Center II measures better, Sonus Sonetto I costs about about 100% more% less. Whether that gap is worth the money is the call only you can make - and in a normal room it is often smaller than the numbers suggest. Match it to your room: we rate Sonus Sonetto Center II the better fit for a large room and a very large room, and Sonus Sonetto I for a small room. In a large or open-plan room, Sonus Sonetto Center II has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Sonus Sonetto I is the easier speaker to get right.

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.


Most Popular Speakers
Klipsch Reference R-51M
Klipsch R-51M
2-way | 93 dB | 8 ohms
ELAC Debut 2.0 B6.2
ELAC Debut 2.0 B6.2
2-way | 87 dB | 6 ohms
Wharfedale Elysian 2
Wharfedale Elysian 2
3-way | 89 dB | 4 ohms
KEF Q150
KEF Q150
2-way | 86 dB | 8 ohms
Bowers & Wilkins 606 S2 Anniversary Edition
B&W 606 S2
2-way | 88 dB | 8 ohms
Klipsch Reference Premiere RP-500M
Klipsch RP-500M
2-way | 93 dB | 8 ohms
Wharfedale EVO5.1
Wharfedale EVO5.1
2-way | 87 dB | 4 ohms
Wharfedale EVO4.1
Wharfedale EVO4.1
2-way | 87 dB | 8 ohms
This site contains affiliate links. We may be compensated if you make a purchase after clicking through one of them. As an Amazon Associate we earn from qualifying purchases.
Copyright © 2026 by SpeakerDecision
About Privacy Contact US Camera Decision

Report a Correction