Hands On: Sonus faber Sonetto Series of Loudspeakers

Delivering high levels of performance, stunning looks and competitive price points, the Sonus faber Sonetto series scores a hat trick for consumers that want it all.

Hands On: Sonus faber Sonetto Series of Loudspeakers
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I am not afraid to admit that I was wrong. For years I’ve heard many Sonus faber products at trade events such as CES and to be quite honest I was never impressed. My impression was that Sonus faber products are designed for old guys that like classical music.

I may be an “old guy” too, but I like to rock, and after using the company’s new Sonetto line of products for music and immersive audio, I can happily admit that I was wrong: Sonus faber does indeed rock. 

Not only does the product line rock, but it does so at quite a high level. Trying the company’s products in my analog stereo and my 7.4.2 object-based surround systems, I thoroughly enjoyed the speakers’ performance and elegant looks. 

Sonus faber Sonetto Features and Setup

Taking a look at each of the models that were used for the review, the Sonetto III is a three-way floorstanding loudspeaker. Internally, the speaker features a 29mm DAD tweeter that includes a DKM diaphragm, along with a 150mm cellulose pulp and fiber midrange driver and a pair of 150mm aluminum-cone woofers. The 4-ohm Sonetto III is 89dB sensitive and it provides a frequency response of 42Hz to 25kHz. 

The two-way Sonetto I utilizes the same 29mm tweeter and the same 150mm midrange driver that’s in the Sonetto III, and these drivers reside in a front-ported enclosure. Sonus faber points out the 4-ohm speaker is 87dB sensitive and it provides a frequency response of 45Hz to 25kHz. 

Handling center channel duties is the Sonetto Center I. This speaker employs a two-way design with the same drivers as the other Sonetto speakers. Like other center-channel speakers, the Sonetto Center 1 places the 29mm tweeter in between the 150mm midrange drivers.  Like other Sonus faber speakers, the 4-ohm Center I features the company’s lute shape cabinets. In the case of the Center I, the cabinet incorporates a pair of rear ports that surround the binding posts. 

The Center I is rated as a 90dB sensitive speaker, and it provides a frequency response of 60Hz to 25kHz. 

Sonus faber’s 4-ohm Wall speaker is an on-wall speaker that provides a frequency response of 60Hz to 25kHz. The two-way, 89dB efficient speaker places the 29mm tweeter between a pair of 150mm midrange drivers in a vertical array. 

Rounding out the system, the company also sent along the Gravis II subwoofer. This product uses a 350-watt RMS Class A/B amplifier to drive the unit’s 10-inch woofer. The approximately $1,500 subwoofer includes an LFE input, as well a line-level input and a high-level signal Neutrik four-pole Speakon input. 

Moving into the setup process, the entire system didn’t take long to integrate into my home. 

After unpacking the speakers, I started by assembling the floorstanding speakers’ outriggers, which only took a few minutes. From there I simply connected my speaker cables, which use banana plugs. 


  • Cabinets feature a lute shape, which Sonus faber popularized many years ago, and a leather cap to add a touch of elegance to the speakers’ appearance
  • Sonetto speakers employ silk-dome tweeters with its Damped Apex Dome (DAD) and midrange drivers with natural fiber and paper blend cones.
  • Sonus faber offers the speakers in a choice of wood, white and black finishes

The only speaker that was unique was the Wall on-wall speaker. This speaker features spring-loaded binding posts that are placed in a small recessed cavity that were somewhat difficult to work with. 

My side surround cables use spade termination and I was able to make the connection, but if I were mounting the speakers—I placed them on Auralex decoupling pads on a shelf that surrounds my listening area—I would have likely had to have used a different style of cable termination such as bare wire or pins. 

In order to provide some insight into my home system I have two separate cabinets in my listening area. One cabinet holds an Onkyo Dolby Atmos cable receiver, along with an LG UltraHD Blu-ray disc player, a 4K Apple TV, and the other cabinet houses a stereo setup with Bryston electronics, a Cary phono preamp, a Meridian DAC that’s connected to a Sonos Connect and a Pioneer Blu-ray disc player I use to play CDs. The Cary phono preamp is connected to a Thorens TD-160 turntable. 

All of these components live in a live end/dead end 13×23 foot room design.

In the theater system, I went through the receiver’s setup menu to set the speaker distances, levels and equalization. This process took roughly 20 minutes. 

In total, it took me approximately a couple of hours to unpack, setup and fully install the multichannel Sonus faber speaker system. 

Positioning the Sonetto IIIs for my stereo system (I just swap speaker cables) took only a few minutes using the placement of my Aerial Acoustics Model 6 floorstanding speakers as the starting point. 

Performance and Final Thoughts

Driving the speaker system within my theater system, I used a multichannel processing mode and my 4K Apple TV to help the speakers break-in.  

After a couple of weeks of simply running the system I began my listening using my stereo system that includes a Bryston five-channel 9B-ST amplifier setup in a biamp configuration to drive the speakers. 

Listening to bands such as Audioslave, Tesla, Candlebox and Natalie Merchant, I thought the Sonetto IIIs via the combination of the Connect and Meridian DAC provided plenty of bottom end with a warm midrange and a nicely extended top end. 

Mixing up my listening, I later listened to Chris Botti’s “In Boston” as well as AC/DC’s “Back in Black” on vinyl and via Amazon’s music service. The transparency and detail of the Sonetto III’s allowed me to hear the dynamic differences between the streaming version of “Back in Black” and the vinyl version of this classic album, as well as finer details such as the roundness of Cliff William’s basslines and the more “pointed attack” those same basslines offered in the streaming version of the album. 

One of my favorite rock recordings is Zakk Wylde’s Black Label Society’s “Hangover Music Vol. 6.” The guitars on this album sound immense; they really capture Zakk’s Gibson Les Paul, EMG active pickups, Marshall JCM800 driven sound and songs like “House of Doom” really highlight his aggressive, high-gain tone. With this CD I thought the Sonnetto IIIs sounded crisp and dynamic reproducing the album’s massive wall of multitracked guitars, as well as dense low frequencies and Zakk’s gravely, high-midrange vocals. 

The Sonetto line of products are exceptionally engineered, they provide elegant looks, and the line provides a selection of products to need a range of music and home theater requirements. 

All this rock listening made me change my mind on what I thought Sonus faber speakers were … putting it bluntly they totally rock and my preconception was completely wrong. 

Getting into some home theater, I popped in “Lord of the Rings: Fellowship of the Ring” on Blu ray and watched the Netflix series “Wu Assassins,” which offered a Dolby Atmos immersive audio soundtrack. 

In both cases, the collection of Sonus faber speakers showcased how well their driver arrays were able to create a seamless, timbre-matched, immersive soundfield even with the non-object-basd DTS HD Master Audio soundtrack from the “Lord of the Rings.”

The Atmos soundtrack included with “Wu Assassins” featured lots of bottom-end that the subwoofer handled well. Using the well-mixed audio, the series includes lots of martial arts action that emphasizes lower midrange and bass to convey the impact of the combatants’ punches and kicks. 

Finishing my time with the system with the UltraHD Blu-ray release of “Avengers Endgame,” I thought the center channel provided nice, clear dialog that nicely complemented the action the movie offered. 

In my room I was able to get the sub to play down to 31Hz. It’s strongest levels of low-end extension were 40Hz, but when I added additional subwoofers, I was able to gain about 6dB more output to better balance the sub’s lowest extension of 31.5Hz. 

Summing up what I stated earlier—yes the Sonus faber Sonetto speakers made me eat crow. The speakers performed nothing like my preconceived ideas based on bad tradeshow demonstrations. The Sonetto line of products are exceptionally engineered, they provide elegant looks, and the line provides a selection of products to need a range of music and home theater requirements. 

My best advice is to check out the Sonus faber Sonetto speakers. If you do your homework I think you’ll be as impressed with the product line as I was. This is one case where I am happy that I was wrong. 

CE Pro Verdict


  • Sonetto speakers deliver exceptional sound quality with high levels of detail and big sound stages
  • The speakers ooze Italian design elegance and they should complement just about any home design
  • The line provides a choice of models to address everything from stereo, to immersive audio installations


  • This is a common complaint I have with center-channel and on-wall speakers: Access to the binding posts are limited. The on-wall Sonetto is a speaker with limited access to the binding posts
  • I would like to see more subwoofer choices such as a 12-inch woofer model to complement the product line

Sonus faber Sonetto series MSRPs:

  • Sonetto III floorstanding speaker is $3,999 per pair
  • Sonetto I bookshelf speaker is $1,699 per pair
  • Sonetto stands for bookshelf speakers are $499 per pair
  • Sonetto Center I center-channel speaker is $999 each
  • Sonetto Wall speaker is $1,099 each

About the Author

Robert Archer
Robert Archer:

Bob is an audio enthusiast who has written about consumer electronics for various publications within Massachusetts before joining the staff of CE Pro in 2000. Bob is THX Level I certified, and he's also taken classes from the Imaging Science Foundation (ISF) and Home Acoustics Alliance (HAA). Bob has also served as the technology editor for CE Pro's sister publication Commercial Integrator. In his personal time beyond his family, he's studied guitar and music theory at Sarrin Music Studios in Wakefield, Mass., and he also studies Kyokushin karate at 5 Dragons and Brazilian jiu-jitsu at Binda Brazilian Jiu Jitsu.


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