In this review, we will be comparing Theatrus T107 Quad 10" Flagship Monitor Speaker and Guarneri, two Passive Bookshelf speakers from Aperion and Sonus faber.
Let's have a brief look at the main features
of Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker and Sonus faber Guarneri first before getting into our more
detailed comparison.
| Key Specs | Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker | Sonus faber Guarneri |
|---|
| Brand | Aperion
United States · founded 1998 | Sonus faber
Italy · founded 1983 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 5" | 1.1" Soft-Dome |
|---|
| Woofer | 4 x 10" | 6" Paper |
|---|
| Frequency response | 26-26k Hz | 40-35k Hz |
|---|
| Sensitivity | 96 dB | 86 dB |
|---|
| Impedance | 4 ohms | 4 ohms |
|---|
| Power range | 20-1000 Watts watts | 30-125 watts |
|---|
| Weight | 81.01kg / 178.2lbs | 16.00kg / 35.2lbs |
|---|
| Dimensions (H x W x D) | 31.1" x 31.1" x 22.4"
789.9 x 789.9 x 569.0mm | 14-13/16" x 9-7/16" x 14-3/4"
377.0 x 239.0 x 375.0mm |
|---|
What size room are the Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker and Sonus faber Guarneri 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* |
Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker |
Sonus faber Guarneri |
| Near-field |
Good |
Good |
| Small Room |
Good |
Good |
| Mid-size Room |
Average |
Average |
| Large Room |
Poor |
Poor |
| Very Large Room |
No way |
No way |
(* 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 Theatrus T107 Quad 10" Flagship Monitor Speaker and Guarneri are 2-way speakers.
Aperion Theatrus T107 Quad 10" Flagship Monitor SpeakerSonus faber Guarneri
TweeterWoofer
Drivers drawn to scale and directly comparable. Cabinet outlines are indicative: full dimensions are not published for both. Hover a driver for its size.
| Driver |
Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker |
Sonus faber Guarneri |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
5-inch
|
1.1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
4 x 10-inch
|
1 x 6-inch
|
Theatrus T107 Quad 10" Flagship Monitor Speaker features a 5" Tweeter and 4 x 10" Woofer. On the other hand, the Guarneri features a 1.1" Silk Soft-Dome Tweeter and 1 x 6" Paper Woofer with a Crossover frequency at 2200 Hz.
Frequency Response
Theatrus T107 Quad 10" Flagship Monitor Speaker has a frequency range of 26-26k Hz whereas Guarneri has a frequency range of 40-35k Hz. With a minimum frequency of 26Hz, the Theatrus T107 Quad 10" Flagship Monitor Speaker can go significantly deeper on the low side and provide stronger bass compared to the Guarneri's min frequency of 40Hz.
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
Theatrus T107 Quad 10" Flagship Monitor Speaker
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
Theatrus T107 Quad 10" Flagship Monitor Speaker and Guarneri have the same Impedance of 4 ohms but where they differ is the sensitivity levels. Theatrus T107 Quad 10" Flagship Monitor Speaker sensitivity is rated at 96 dB and the Guarneri's is at 86 dB. This 10 dB difference makes the Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker a more sensitive speaker compared to Sonus faber Guarneri, 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 Theatrus T107 Quad 10" Flagship Monitor Speaker and the Theatrus T107 Quad 10" Flagship Monitor Speaker can provide this impedance level.
Sensitivity
Bookshelf Speakers
Theatrus T107 Quad 10" Flagship Monitor Speaker
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.
Theatrus T107 Quad 10" Flagship Monitor Speaker can handle a max power of 2000 watts RMS, whereas Guarneri has a max power handling value of 125 watts RMS, 1875 watts less than the Theatrus T107 Quad 10" Flagship Monitor Speaker.
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.
Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker
Input Type and Bi-Amping / Bi-Wiring
Guarneri features Binding post posts which make bi-amping or bi-wiring possible. Theatrus T107 Quad 10" Flagship Monitor Speaker has a Binding post which doesn't feature bi-amping/bi-wiring.
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 Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker's and Sonus faber Guarneri's external dimensions. Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker has external dimensions of 789.9 x 789.9 x 569.0mm (31.1 x 31.1 x 22.4inch) whereas Sonus faber Guarneri has external dimensions of 377.0 x 239.0 x 375.0mm (14-13/16 x 9-7/16 x 14-3/4inch).
Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker is clearly the larger of the two speakers. Its body is 550.9mm wider, 412.9mm taller and 194mm deeper than Sonus faber Guarneri.
Size, drawn to scale
Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.
Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker needs about 401% more floor or shelf area. Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker is 194mm deeper, so it stands that much further out from the wall. Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker is 413mm 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 Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker is approximately 4494.5cm2 / 696.6inch2 and base area of the Sonus faber Guarneri is approximately 896.3cm2 / 138.9inch2. The Theatrus T107 Quad 10" Flagship Monitor Speaker requires 401% more surface area than the Guarneri which gives it a small disadvantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker weighs 81.01kg / 178.2lbs and the Sonus faber Guarneri weighs 16.00kg / 35.2lbs. This makes the Theatrus T107 Quad 10" Flagship Monitor Speaker 406% heavier than the Guarneri.
Here is a comparison of how Theatrus T107 Quad 10" Flagship Monitor Speaker and Guarneri's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker
 Max Input Power |
2000 watts
vs
125 watts
|
Handle more power from your amplifier |
 Sensitivity |
96 dB
vs
86 dB
|
Play louder with same amount of amplification power |
 Woofer Size |
10 inches
vs
6 inches
|
Larger woofer |
|
Number of Woofers |
4
vs
1
|
More woofers |
|
Low Frequency Response |
26 Hz
vs
40 Hz
|
Generates deeper bass |
 High Frequency Response |
35k Hz
vs
26k Hz
|
Generates higher frequency |
 Height |
377mm
vs
789mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
896cm2
vs
4494cm2
|
Takes less floor space |
| General |
Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker |
Sonus faber Guarneri |
| Brand |
Aperion |
Sonus faber |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
20-1000 Watts watts |
30-125 watts |
| Sensitivity |
96 dB |
86 dB |
| Impedance |
4 ohms |
4 ohms |
| Frequency Response |
26-26k Hz |
40-35k Hz |
Drivers |
|
|
| Woofer Quantity |
4 |
1 |
| Woofer Size |
10" |
6" |
| Woofer Composition |
|
Paper |
| Tweeter Size |
5" |
1.1" |
| Tweeter Type |
n/a |
Soft-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
2200 Hz |
Physical Specs |
|
|
| Height |
789.9mm (31.1") |
377.0mm (14.8") |
| Width |
789.9mm (31.1") |
239.0mm (9.4") |
| Depth |
569.0mm (22.4") |
375.0mm (14.8") |
| Weight |
81.01kg (178.2lbs) |
16.00kg (35.2lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Mounting Bracket |
|
|
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
n/a |
Yes |
Other |
|
|
| Parts Warranty |
|
|
| Labor Warranty |
|
|
A generation apart: Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker is the newer design, against a 2017 model. Newer is not automatically better, but the older one is more likely to be discounted or near run-out.
| Area | Better | Why |
|---|
| Bass | A | Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker digs deeper - 26Hz against 40Hz. |
| Amplifier needs | A | Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker is more sensitive (96dB vs 86dB), so it goes louder on the same amplifier. |
| Headroom | A | Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker takes more power (2000W vs 125W) - more in hand in a big room. |
| Size | depends | Sonus faber Guarneri is easier to place; Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | B | Sonus faber Guarneri: bi-amping. |
| Price | evenly matched | Much the same money ($15,998 vs $15,998 a pair). |
A Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker B Sonus faber Guarneri
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?
Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker has the edge on paper, though the margin is not large. The rows marked "depends" may matter more to you than the score does. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 40Hz anyway, so judge these on the other rows instead. In a large or open-plan room, Aperion Theatrus T107 Quad 10" Flagship Monitor Speaker has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Sonus faber Guarneri 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.