It has been written no less than three times because I wanted to properly present my findings in a manner fitting these wonderful instruments. No doubt, this has been one of the most difficult tasks I’ve taken on in quite some time. Not because I’m trying to formulate flowery language and highbrow adjectives… but because what I’ve encountered in this speaker set is so difficult to express in words.
The time spent with these speakers has been an emotional experience, truly ! Eventually, I decided to simply put my thoughts down on paper and hopefully start an open dialog to discuss them in greater detail.
So… on to a little background and the review…
My car audio history began when I was 15 years old. I’ve had the pleasure of personally using a wide variety of equipment over my nearly 30 years in this hobby. One aspect has been consistent during those years, love of music has been the driving force behind my personal search for sonic perfection.
Enter Sinfoni Grandioso…
The tweeter is comprised of three major parts; the CNC milled main framework, the 80% acoustically open grill and an aluminum back plate to hold it all together and mechanically reduce any vibrations that might exist. The front ring has a prominent role in the speaker's acoustic and functional applications, it works indeed as grill housing, matching point for others frame components, and especially as a Frequency Re-phaser, located in the inner perimeter, between the dome/surround and grill housing milling. It is the rounded aluminum tooling which gives the shape to the frame and a linearity to the frequency response on the whole range by providing an excellent, wide dispersion pattern.
The CF25T specs
Normal Impedance: 4Ω
Power RMS (filtered 12dB 6000hz): 100W
Power RMS (filtered 12dB 3500hz): 60W
Voice Coil: 26mm
Frequency Response: 2.500Hz - 18.000Hz
The midwoofer, simply put, is an engineering marvel and work of art. Sinfoni developed the Composite Frame Technology (CFT) especially for the Grandioso series. The basket structure is made of 10 different single aluminum components painstakingly designed to create a mechanical structure able to properly damp frame vibrations thus drastically reducing mechanical distortion.
The carbon fiber cone was chosen to have a maximum rigidity with minimum weight. This creates a very fast sound that allows fantastic impact capability. Typically very stiff or hard cones exhibit numerous frequency peaks. To counteract this various tests and listening sessions were conducted to reveal these problem areas. Sinfoni conceived and developed a special compound to handbrush directly onto the surface of the cone in order to attenuate those frequencies and create a “pure” linear piston.
Many times mass produced speakers overlook two parts, the surround and spider. The high-excursion rubber surround was matched to a spider that provides the speaker phenomenal bass extension as well as extremely fast musical response with weight.
Normal Impedance: 4
Power RMS: 90W
Voice Coil: 32mm
Frequency Response: 50Hz - 5.000Hz
I’m sure at this point you can tell I really like the Sinfoni Grandioso speaker set. However, I do have two major gripes…
The absolutely atrocious response graphs that Sinfoni provided and the fact that no owner’s manual is provided.
- The absolutely atrocious response graphs that Sinfoni provided.
I have no idea how these were measured… but I do not see how they are true representations of what I’ve listened to.
- the fact that no owner’s manual is provided.
when someone invests in equipment of this level… leather bound parchment paper manuals should be included along with “grandioso” explanations of how these should be best setup.
But I’m nitpicking….
Let me start by saying the level of realism is simply astounding. I’ve never really encountered anything quite like these speakers ability to convey the acoustical atmosphere of each recording.
The imaging and soundstage was truly a multi-dimensional experience. I was not listening to a recording, I was part of the performance… part of the venue… truly sitting with other spectators taking in the performance.
Another aspect that became VERY apparent was the sheer power the CF165W midwoofer was capable of. A Velvert Hammer is every sense.... I truly believe these drivers are easily capable of producing content well into the subwoofer range while remaining perfectly composed. Please keep in mind, these midwoofers were high passed at 3.2kHz on a 6db slope and allowed to play all the way down....
The stage wide well beyond the physical limitations of the speaker enclosures… the stage was deep and layered… but the most surprising aspect was the amount of information that was perceivable both to each side and behind me… I was experiencing the performance…
The sound was full bodied and smooth completely devoid of any harshness nor overtly soft or muted. I can not conceive music being reproduced any truer to my ears...
My experience with the Sinfoni Grandioso was simply real !