In this review, we will be comparing Lumina I and Debut 2.0 B6.2, two Passive Bookshelf speakers from Sonus Faber and ELAC. Let's have a brief look at the main features of Sonus Lumina I and ELAC Debut 2.0 B6.2 first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how Sonus Lumina I and ELAC Debut 2.0 B6.2 compares and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Both Lumina I and Debut 2.0 B6.2 are 2-way speakers. Lumina I features a 1.15" high definition DAD Tweeter and 1 x 4.75" paper cone Woofer with a Crossover frequency at 2000Hz. On the other hand, Debut 2.0 B6.2 features a 1" Cloth Soft-dome Tweeter and 1 x 6.5" Woven Aramid-Fiber Woofer with a Crossover frequency at 2200Hz.
Lumina I has a frequency range of 65-24k Hz whereas Debut 2.0 B6.2 has a frequency range of 44-35k Hz. With a minimum frequency of 44Hz, the Debut 2.0 B6.2 can go significantly deeper on the low side and provide stronger bass compared to the Lumina I's min frequency of 65Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers under Bookshelf class in our database.
Impedance and Sensitivity
Lumina I is a 4 ohms speaker compared to Debut 2.0 B6.2 which has a nominal impedance of 6 ohms. These two speakers also have different sensitivity levels. Lumina I sensitivity is rated at 88 dB and Debut 2.0 B6.2's is at 87 dB. This 3 dB difference makes ELAC Debut 2.0 B6.2 a more sensitive speaker compared to Sonus Lumina I, hence will play louder with the same amount of watts.
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 I can handle a max power of 120 watts RMS from the amp the whereas Lumina I has a max power handling value of 100 watts RMS , 20 watts less than the Debut 2.0 B6.2.
Keep in mind that higher max power handling value doesn't necesssarily make that a louder speaker compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters such as Impededance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Lumina I features Binding post posts which makes bi-amping or bi-wiring possible. Debut 2.0 B6.2 has a 5-Way Metal post which doesn't feature bi-amping/bi-wiring.
Cabinet Type and Port Position
Both Lumina I and Debut 2.0 B6.2 have front firing ports. front ported speakers offers more flexibility in placement in regards to proximity to walls&surfaces compared to rear ported speakers.
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 I's and ELAC Debut 2.0 B6.2's external dimensions. Sonus Lumina I has external dimensions of 280.0 x 148.0 x 213.0mm ( 11 x 5.8 x 8.4inch) whereas ELAC Debut 2.0 B6.2 has external dimensions of 375.0 x 195.0 x 268.0mm ( 14.7 x 7.6 x 10.5inch) .
ELAC Debut 2.0 B6.2 is clearly the larger of the two speakers. Its body is 47mm wider, 95mm taller and 55mm deeper than Sonus Lumina I.
Below you can see the front view size comparison of Sonus Lumina I and ELAC Debut 2.0 B6.2 in scale.
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 I is approximately 315.2cm2 / 48.9inch2 and base area of the ELAC Debut 2.0 B6.2 is approximately 522.6cm2 / 81.0inch2. The Lumina I requires 40% less surface area than the Debut 2.0 B6.2 which gives it a small advantage on placement in tight spaces.
Here is an another comparison that shows both speakers on a BDI Octave Media Cabinet, next to a standard size amplifier and turntable in scale: