In this review, we will be comparing Lumina II and Lumina I, two Passive Bookshelf speakers by Sonus Faber. Let's have a brief look at the main features of Sonus Lumina II and Sonus Lumina I 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 II and Sonus Lumina I 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 II and Lumina I are 2-way speakers. 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, Lumina I features a 1.15" high definition DAD Tweeter and 1 x 4.75" paper cone Woofer with a Crossover frequency at 2000Hz.
Lumina II has a frequency range of 55-24k Hz whereas Lumina I has a frequency range of 65-24k Hz. With a minimum frequency of 55Hz, the Lumina II 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 II and Lumina I has the same Impedance of 4 ohms but where they differ is the sensitivity levels. Lumina II sensitivity is rated at 86 dB and Lumina I's is at 88 dB. This 2 dB difference makes Sonus Lumina II 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 II can handle a max power of 150 watts RMS from the amp the whereas Lumina I has a max power handling value of 100 watts RMS, 50 watts less than the Lumina II.
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
Both Lumina II and Lumina I features dual binding post speaker terminals for bi-amping or bi-wiring.
Cabinet Type and Port Position
Both Lumina II and Lumina I 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 II's and Sonus Lumina I'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 I has external dimensions of 280.0 x 148.0 x 213.0mm ( 11 x 5.8 x 8.4inch) .
Sonus Lumina II is clearly the larger of the two speakers. Its body is 32mm wider, 24mm taller and 50mm deeper than Sonus Lumina I.
Below you can see the front view size comparison of Sonus Lumina II and Sonus Lumina I 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 II is approximately 473.4cm2 / 73.4inch2 and base area of the Sonus Lumina I is approximately 315.2cm2 / 48.9inch2. The Lumina II requires 50% more surface area than the Lumina I which gives it a small disadvantage 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: