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Sonus Lumina II vs Sonus Lumina III Comparison

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Sonus Lumina II

Passive Bookshelf | 55-24k Hz

Sonus Faber Lumina II
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Sonus Lumina III

Passive Floor-standing | 40-24k Hz

Sonus Faber Lumina III
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Sonus Lumina II Sonus Lumina II
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Sonus Lumina III Sonus Lumina III
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Sonus Lumina II
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Sonus Lumina III
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Sonus Lumina II vs Sonus Lumina III Speaker Comparison

In this review, we will be comparing two different type of speakers by Sonus Faber. Sonus Faber Lumina II is a Bookshelf speaker whereas the Lumina III is a Floor-standing speaker.

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

Sonus Lumina II Key Specs

  • 2-way Design
  • 1.15" high definition DAD Tweeter
  • 6" paper cone Woofer
  • 55-24k Hz Frequency Response
  • 86 dB Sensitivity
  • Impedance: 4ohms
  • Power Range:30-150watts
  • Weight:5.65kg
  • Dimensions (H x W x D): 304.0" x 7.1" x 10.3"( 304.0 x 180.0 x 263.0mm )

Sonus Lumina III Key Specs

  • 3-way Design
  • 1.15" high definition DAD Tweeter
  • 6" Midrange
  • 2 x 6" paper cone Woofer
  • 6" Midrange
  • 40-24k Hz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 4ohms
  • Power Range:50-250watts
  • Weight:15.90kg
  • Dimensions (H x W x D): 989.0" x 9" x 10.9"( 989.0 x 228.0 x 278.0mm )

Lumina II and Lumina III are members of Sonus Faber's Lumina series of speakers. Below you can find the loudspeakers from this series.

Sonus Faber Lumina Series History
Model Body Frequency SensitivityImpedance Woofer
Sonus Lumina V
  
Floor-standing 38-24k Hz 90 dB4Ω 2 x 6.5"
Sonus Lumina II
Bookshelf 55-24k Hz 86 dB4Ω 1 x 6"
Sonus Lumina III
Floor-standing 40-24k Hz 89 dB4Ω 2 x 6"
Sonus Lumina I
  
Bookshelf 65-24k Hz 88 dB4Ω 1 x 4.75"
Sonus Lumina Center I
  
Center Channel 65-24k Hz 87 dB4Ω 2 x 4.75"

What size room are the Sonus Lumina II and Sonus Lumina III 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 II Sonus Lumina III
Near-field Poor Bad
Small Room Average Poor
Mid-size Room Good Average
Large Room Average Good
Very Large Room Poor 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.)

In the following sections, we will get into more detail in order to better understand how the Sonus Lumina II and Sonus Lumina III compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Drivers

One of the fundamental differences between these two speakers is that Lumina II is a 2-way design whereas the Lumina III is a 3-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.

Driver Sonus Lumina II Sonus Lumina III
Driver Setup 2-way 3-way
Tweeter 1.15-inch 1.15-inch
Midrange - 1 x 6-inch
Woofer 1 x 6-inch 2 x 6-inch

Lumina II features a 1.15" high definition DAD Tweeter and 1 x 6" paper cone Woofer with a Crossover frequency at 1800Hz. On the other hand, the 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.

Frequency Response

Lumina II has a frequency range of 55-24k Hz whereas Lumina III has a frequency range of 40-24k Hz. With a minimum frequency of 40Hz, the Lumina III can go significantly deeper on the low side and provide stronger bass compared to the Lumina II's min frequency of 55Hz.

Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.

Low Frequency

Bookshelf Speakers

Lumina II
Lumina III
Min
Average
Max
High Frequency

Bookshelf Speakers

Sonus Lumina II
Sonus Lumina III
Min
Average
Max

None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.

Impedance and Sensitivity

Lumina II and Lumina III have the same Impedance of 4 ohms but where they differ is the sensitivity levels. Lumina II sensitivity is rated at 86 dB and the Lumina III's is at 89 dB. This 3 dB difference makes the Sonus Lumina III a more sensitive speaker compared to Sonus Lumina II, 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 Lumina II and the Lumina II can provide this impedance level.

Sensitivity

Bookshelf Speakers

Lumina II
Lumina III
Min
Average
Max

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.

Lumina II can handle a max power of 250 watts RMS from the amp the whereas Lumina II has a max power handling value of 150 watts RMS , 100 watts less than the Lumina III.

Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters such as Impedance, sensitivity and system efficiencies.

Input Type and Bi-Amping / Bi-Wiring

Both Lumina II and Lumina III features dual binding post speaker terminals for bi-amping or bi-wiring.

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

Cabinet Type and Port Position

Lumina II has a front firing port whereas Lumina III has a bottom firing ports. Sonus Lumina II's front-firing port gives more flexibility in placement in regards to proximity to walls compared to Sonus Lumina III with its rear-firing port.

Physical Specs

Size of a speaker can sometimes become 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 II's and Sonus Lumina III's external dimensions. Sonus Lumina II has external dimensions of 304.0 x 180.0 x 263.0mm ( 12 x 7.1 x 10.3inch) whereas Sonus Lumina III has external dimensions of 989.0 x 228.0 x 278.0mm ( 38.9 x 9 x 10.9inch) .

Sonus Lumina III is clearly the larger of the two speakers. Its body is 48mm wider, 685mm taller and 15mm deeper than Sonus Lumina II.

Below you can see the front view size comparison of Sonus Lumina II and Sonus Lumina III in scale.

Sonus Lumina II vs Sonus Lumina III Size Comparison - Front View
Comparison image of Sonus Lumina II and Sonus Lumina III 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 II is approximately 473.4cm2 / 73.4inch2 and base area of the Sonus Lumina III is approximately 633.8cm2 / 98.2inch2. The Lumina II requires 25% less surface area than the Lumina III which gives it a small advantage on placement in tight spaces.

What's in the Box of Sonus Lumina II?

Here are the items that are included inside the box of Lumina II:
  • 2 Bookshelf loudspeakers
  • 1 Manual
  • 2 Jumpers
  • 2 Grilles
  • 2 Fabric dust guards
  • What's in the Box of Sonus Lumina III?

    Here are the items that come with the Lumina III:
  • Floorstanding loudspeaker
  • 1 Manual
  • 2 Jumpers
  • 2 Grilles
  • 2 Fabric dust guards
  • 4 Spikes
  • 4 Under spikes
  • 4 Spikes locks

  • Reasons to choose Sonus Faber Lumina II over Sonus Faber Lumina III
    Height 304mm vs 989mm Easier to fit in smaller spaces
    Base Surface Area 473cm2 vs 633cm2 Takes less floor space
    Price per pair* 1199USD vs 2199USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose Sonus Faber Lumina III over Sonus Faber Lumina II

    Max Input Power 250 watts vs 150 watts Handle more power from your amplifier
    Driver Setup 3-way vs 2-way Have a dedicated mid-range driver
    Sensitivity 89 dB vs 86 dB Play louder with same amount of amplification power
    Number of Woofers 2 vs 1 More woofers
    Low Frequency Response 40 Hz vs 55 Hz Generates deeper bass
    Sonus Lumina II vs Sonus Lumina III Specs Table
    Detailed comparison of specifications
    General Sonus Faber Lumina II Sonus Faber Lumina III
    Brand Sonus Faber Sonus Faber
    Speaker Type Bookshelf speakers Floor-standing speaker
    Power Range 30-150 watts 50-250 watts
    Sensitivity 86 dB 89 dB
    Impedance 4 ohms 4 ohms
    Frequency Response 55-24k Hz 40-24k Hz
    Drivers
    Woofer Quantity 1 2
    Woofer Size 6" 6"
    Woofer Composition paper cone paper cone
    Tweeter Size 1.15" 1.15"
    Tweeter Type high definition DAD high definition DAD
    Aimable Tweeter No No
    Midrange Driver No 6"
    Crossover Frequency 1800Hz 350 and 3500 Hz
    Firing Direction front bottom
    Physical Specs
    Height 304.0mm (12") 989.0mm (38.9")
    Width 180.0mm (7.1") 228.0mm (9")
    Depth 263.0mm (10.4") 278.0mm (10.9")
    Weight 5.65kg (12.4lbs) 15.90kg (35lbs)
    Enclosure Bass Reflex Bass Reflex
    Finish real multilayer wood real multilayer wood
    Available Colors Black, Wenge, Walnut Black, Wenge, Walnut
    Mounting Bracket
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs Yes Yes
    Other
    Parts Warranty
    Labor Warranty

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