In this review, we will be comparing Lumina III and R600, two Passive Floor-standing speakers from Sonus Faber and Polk Audio.
Let's have a brief look at the main features
of Sonus Lumina III and Polk R600 first before getting into our more
detailed comparison.
Sonus Lumina III Key Specs
- 3-way Design
- 1.15" high definition DAD Tweeter
- 6" Midrange
- 2 x 6" paper cone Woofer
- 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 )
Polk R600 Key Specs
- 2-way Design
- 1" Pinnacle Ring Radiator Tweeter
- 2 x 6.5" Polypropylene Turbine Cone Woofer
- 43-38k Hz Frequency Response
- 87.5 dB Sensitivity
- Impedance: 8ohms
- Power Range:25-200watts
- Weight:21.50kg
- Dimensions (H x W x D): 1063.8" x 11" x 15"( 1063.8 x 280.7 x 381.6mm )
What size room are the Sonus Lumina III and Polk R600 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 |
Polk R600 |
| Near-field |
Bad |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Average |
Good |
| Large Room |
Good |
Good |
| Very Large Room |
Average |
Poor |
(* 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 III and Polk R600 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
One of the fundamental differences between these two speakers is that Lumina III is a 3-way design whereas the R600 is a 2-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 III |
Polk R600 |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1.15-inch
|
1-inch
|
|
Midrange
|
1 x 6-inch |
- |
|
Woofer
|
2 x 6-inch
|
2 x 6.5-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 R600 features a 1" Pinnacle Ring Radiator Tweeter and 2 x 6.5" Polypropylene Turbine Cone Woofer with a Crossover frequency at 2700Hz.
Frequency Response
Lumina III has a frequency range of 40-24k Hz whereas R600 has a frequency range of 43-38k Hz. With a minimum frequency of 40Hz, the Lumina III can go slightly deeper then the R600's min frequency of 43Hz.
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 Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing Speakers
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 III is a 4 ohms speaker compared to the R600 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 R600's is rated at 87.5 dB. This 1 dB difference makes the Sonus Lumina III a more sensitive speaker compared to Polk R600, 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. 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 III can handle a max power of 250 watts RMS from the amp the whereas R600 has a max power handling value of 200 watts RMS, 50 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
Lumina III features Binding post posts which make bi-amping or bi-wiring possible. R600 has a Post which doesn't feature bi-amping/bi-wiring.
Polk R600's Post terminals
Cabinet Type and Port Position
Both Lumina III and R600 have bottom firing ports.
Polk R600 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 III's and Polk R600'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 Polk R600 has external dimensions of 1063.8 x 280.7 x 381.6mm ( 41.9 x 11 x 15inch) .
Polk R600 is clearly the larger of the two speakers. Its body is 52.7mm wider, 74.8mm taller and 103.6mm deeper than Sonus Lumina III.
Below you can see the front view size comparison of Sonus Lumina III and Polk R600 in scale.
Comparison image of Sonus Lumina III and Polk R600 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 Polk R600 is approximately 1071.2cm2 / 166.0inch2. The Lumina III requires 41% less surface area than the R600 which gives it a small advantage on placement in tight spaces.