Has Active Noise Cancellation (Noise Control)
Devialet Gemini
✓
JBL Live Free 2 ✓
ANC makes use of more advanced technology to actively counter noise. ANC works when, it listens to the sound pattern of incoming noise and then generates a mirror signal to counter it. In simple terms, it's like taking +1 (noise) and adding -1 (counter sound by the device) giving 0 therefore "diluting" the noise.
Devialet Gemini have Active Noise Cancellation enabling you to listen at lower volume levels, good for your ears since you don't need to crank up the earbuds volume to overcome background noise.
The JBL Live Free 2 too have Active Noise Cancellation which makes either of the earbuds ideal for flights and morning travels. The Devialet Gemini and JBL Live Free 2 work with different noise cancellation modes, pick the setting that suits your commute or that enhances your relaxation time.
Has Passive Noise Reduction
Devialet Gemini
✓
JBL Live Free 2 ✓
Devialet Gemini sit tightly in place, this creates a sound seal that reduces background sounds well as preventing the earbuds sound from leaking out at the same.
Both JBL Live Free 2, and Devialet Gemini have passive noise reduction which means that both tone down ambient noise instead of actively using ANC to cancel it out.
Driver Unit Size
Devialet Gemini
10mm
JBL Live Free 2 11mm
Devialet Gemini have a unit size of 10mm in diameter, bigger drivers are more powerful, therefor producing better bass.
The driver unit is basically a mini speaker that makes sound in the earbuds, the unit size determines the loudness of the earbuds.
JBL Live Free 2 driver unit is 11mm in diameter,
making them have a larger driver unit than that of Devialet Gemini by 1mm
, as many tend to believe that driver units of a bigger size automatically produce better sound quality.
However, large drivers usually have difficulty producing high frequencies so yeah, larger drivers are capable of generating louder sound, but this does not indicate that they deliver better quality sound.
Lowest Frequency
Devialet Gemini
5Hz
JBL Live Free 2 20Hz
The Devialet Gemini's lowest frequency is at 5Hz, low-frequency response measures if and how well a particular audio component generates low audible frequencies and if it alters the signal while at it.
JBL Live Free 2's lowest frequency is at 20Hz, this implies that
Devialet Gemini can produce a juicier bass than the JBL Live Free 2
Highest Frequency
Devialet Gemini
20000Hz
JBL Live Free 2 20000Hz
Devialet Gemini's highest frequency is at 20000Hz, high-frequency response measures if and how well an audio component generates high human frequencies and if it makes any adjustments to the signal while at it.
JBL Live Free 2's highest frequency is at 20000Hz, this means that
both devices generate equal treble
Sound Pressure Level
Devialet Gemini
94dB/mW
JBL Live Free 2 102dB/mW
The sound pressure level, is the pressure level of sound, in decibels, dB, Devialet Gemini's measurement is 94dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
JBL Live Free 2's sound pressure level measurement is 102dB/mW. The sound pressure level, something is can be considered differently by separate people, so we need to have the means to get a standard measurement of sound level expressed in numerical terms.
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