In this review, we will be comparing Lumina III and Ultra Tower, two Passive Floor-standing speakers from Sonus faber and SVS.
Let's have a brief look at the main features
of Sonus Lumina III and SVS Ultra Tower first before getting into our more
detailed comparison.
| Key Specs | Sonus Lumina III | SVS Ultra Tower |
|---|
| Brand | Sonus faber
Italy · founded 1983 | SVS
United States · founded 1998 |
|---|
| Design | 3-way | 3-way |
|---|
| Tweeter | 1.15" high definition DAD | 1.0" Dome |
|---|
| Midrange | 6" | 2 x 6.5" |
|---|
| Woofer | 2 x 6" paper cone | 2 x 8.0" Polypropylene |
|---|
| Frequency response | 40-24k Hz | 28-32k Hz |
|---|
| Sensitivity | 89 dB | 88 dB |
|---|
| Impedance | 4 ohms | 8 ohms |
|---|
| Power range | 50-250 watts | 20-300 watts |
|---|
| Weight | 15.90kg / 35lbs | 34.27kg / 75.4lbs |
|---|
| Dimensions (H x W x D) | 38.9" x 9" x 10.9"
989.0 x 228.0 x 278.0mm | 45-5/8" x 13-15/16" x 17-1/2"
1159.0 x 355.0 x 445.0mm |
|---|
What size room are the Sonus Lumina III and SVS Ultra Tower 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 Lumina III |
SVS Ultra Tower |
| Near-field |
Bad |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Average |
Average |
| Large Room |
Good |
Good |
| Very Large Room |
Average |
Average |
(* 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 Lumina III and Ultra Tower are 3-way speakers.
Sonus Lumina IIISVS Ultra Tower
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 Lumina III |
SVS Ultra Tower |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1.15-inch
|
1.0-inch
|
|
Midrange
|
1 x 6-inch |
2 x 6.5-inch |
|
Woofer
|
2 x 6-inch
|
2 x 8.0-inch
|
Lumina III features a 1.15" high definition DAD Tweeter, a 6" Midrange and 2 x 6" paper cone Woofer with a Crossover frequency at 350 and 3500 Hz. On the other hand, the Ultra Tower features a 1.0" aluminum Dome Tweeter, a 6.5" Midrange and 2 x 8.0" Polypropylene Woofer with a Crossover frequency at 160HZ and 2000Hz.
Frequency Response
Lumina III has a frequency range of 40-24k Hz whereas Ultra Tower has a frequency range of 28-32k Hz. With a minimum frequency of 28Hz, the Ultra Tower can go significantly deeper on the low side and provide stronger bass compared to the Lumina III'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 Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
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
Lumina III is a 4 ohms speaker compared to the Ultra Tower which has a nominal impedance of 8 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the Lumina III can provide this impedance level.
These two speakers also have different sensitivity levels. Lumina III sensitivity is rated at 89 dB and the Ultra Tower's is rated at 88 dB. This 1 dB difference makes the Sonus Lumina III a more sensitive speaker compared to SVS Ultra Tower, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing Speakers
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.
Ultra Tower can handle a max power of 300 watts RMS, whereas Lumina III has a max power handling value of 250 watts RMS, 50 watts less than the Ultra Tower.
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.
Input Type and Bi-Amping / Bi-Wiring
Both Lumina III and Ultra Tower features dual binding post speaker terminals for bi-amping or bi-wiring.
SVS Ultra Tower's Binding post terminals allows Bi-amping or 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 Sonus Lumina III's and SVS Ultra Tower's external dimensions. Sonus Lumina III has external dimensions of 989.0 x 228.0 x 278.0mm (38.9 x 9 x 10.9inch) whereas SVS Ultra Tower has external dimensions of 1159.0 x 355.0 x 445.0mm (45-5/8 x 13-15/16 x 17-1/2inch).
SVS Ultra Tower is clearly the larger of the two speakers. Its body is 127mm wider, 170mm taller and 167mm deeper than Sonus Lumina III.
Below you can see the front view size comparison of Sonus Lumina III and SVS Ultra Tower in scale.
Comparison image of Sonus Lumina III and SVS Ultra Tower Size and External Dimensions
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 Lumina III is approximately 633.8cm2 / 98.2inch2 and base area of the SVS Ultra Tower is approximately 1579.8cm2 / 244.9inch2. The Lumina III requires 60% less surface area than the Ultra Tower which gives it a small advantage 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 Sonus Lumina III weighs 15.90kg / 35lbs and the SVS Ultra Tower weighs 34.27kg / 75.4lbs. This makes the Ultra Tower 116% heavier than the Lumina III.
Here is a comparison of how Lumina III and Ultra Tower's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of Sonus Lumina III?
Here are the items that are included inside the box of Lumina III:
- Floorstanding loudspeaker
- 1 Manual
- 2 Jumpers
- 2 Grilles
- 2 Fabric dust guards
- 4 Spikes
- 4 Under spikes
- 4 Spikes locks
What's in the Box of SVS Ultra Tower?
Here are the items that come with the Ultra Tower:
- Floorstanding loudspeaker
- Cloth grille
- 2 Metal grilles
- Foam port plug
- 4 Elastomer isolation feet (pre-installed)
- 4 Spike feet
- 4 Nuts
- 4 Protective discs
- 2 Terminal jumpers (pre-installed)
- Owners Manual
- SVS brochure
- Online Product Registration Card
 Sensitivity |
89 dB
vs
88 dB
|
Play louder with same amount of amplification power |
 Height |
989mm
vs
1159mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
633cm2
vs
1579cm2
|
Takes less floor space |
 Price per pair* |
2199USD
vs
2600USD
|
costs less (*prices may change depending on the seller, location and time) |
 Max Input Power |
300 watts
vs
250 watts
|
Handle more power from your amplifier |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
 Woofer Size |
8.0 inches
vs
6 inches
|
Larger woofer |
|
Low Frequency Response |
28 Hz
vs
40 Hz
|
Generates deeper bass |
 High Frequency Response |
32k Hz
vs
24k Hz
|
Generates higher frequency |
| General |
Sonus faber Lumina III |
SVS Ultra Tower |
| Brand |
Sonus faber |
SVS |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
50-250 watts |
20-300 watts |
| Sensitivity |
89 dB |
88 dB |
| Impedance |
4 ohms |
8 ohms |
| Frequency Response |
40-24k Hz |
28-32k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
6" |
8.0" |
| Woofer Composition |
paper cone |
Polypropylene |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
1.15" |
1.0" |
| Tweeter Type |
high definition DAD |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
6" |
6.5" |
| Crossover Frequency |
350 and 3500 Hz |
160HZ and 2000Hz |
| Firing Direction |
bottom |
n/a |
Physical Specs |
|
|
| Height |
989.0mm (38.9") |
1159.0mm (45.6") |
| Width |
228.0mm (9") |
355.0mm (14") |
| Depth |
278.0mm (10.9") |
445.0mm (17.5") |
| Weight |
15.90kg (35lbs) |
34.27kg (75.4lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
real multilayer wood |
MDF/Oak veneer |
| Available Colors |
Black, Wenge, Walnut |
Black Oak,Piano Gloss Black,Piano Gloss White |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
|
5 Years |
| Labor Warranty |
|
5 Years |
A generation apart: Sonus Lumina III is the newer design, against a 2013 model. Newer is not automatically better, but the older one is more likely to be discounted or near run-out.
| Area | Better | Why |
|---|
| Bass | B | SVS Ultra Tower digs deeper - 28Hz against 40Hz. |
| Amplifier needs | evenly matched | Similar sensitivity (89dB vs 88dB) - both want much the same power. |
| Amplifier match | B | SVS Ultra Tower is the easier load at 8 ohms; the other is 4 ohms and wants an amplifier rated for it. |
| Headroom | evenly matched | Similar power handling (250W vs 300W). |
| Size | depends | Sonus Lumina III is easier to place; SVS Ultra Tower is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | depends | Sonus Lumina III: bi-amping; SVS Ultra Tower: bi-amping. |
| Price | A | Sonus Lumina III is cheaper - $2,199 against $2,600, about 15% less. |
A Sonus Lumina III B SVS Ultra Tower
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: SVS Ultra Tower measures better, Sonus Lumina III costs about about 18% 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. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 40Hz anyway, which makes the cheaper Sonus Lumina III much easier to justify. In a large or open-plan room, SVS Ultra Tower has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Sonus Lumina III 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.