Has Active Noise Cancellation (Noise Control)
Bose QuietComfort Earbuds 2
✓
Devialet Gemini 2 ✓
ANC uses more advanced kind of tech to reduce ambient sounds. ANC works when, it listens to the sound pattern of incoming noise and then generates a mirror signal to counter it. Simply put, it's like having +1 (noise) then producing -1 (counter sound by the device) to make zero which results in a reduced level of noise.
The Devialet Gemini 2 have Active Noise Cancellation allowing you to listen at lower volume levels, causing less ear fatigue since you don't need to crank up the device volume to outcompete background sounds.
The Bose QuietComfort Earbuds 2 too have ANC which makes both devices ideal for flights and rush hour travels. The Devialet Gemini 2 and Bose QuietComfort Earbuds 2 work with different noise cancellation types, pick the mode that suits your commute or that enhances your chill time.
Has Passive Noise Reduction
Bose QuietComfort Earbuds 2
✓
Devialet Gemini 2 ✓
The Devialet Gemini 2 sit well in place, creating an acoustic seal that reduces background sounds and also prevents the device voice audio from leaking out .
Both of these devices have passive noise reduction which means that they limit ambient noise without using ANC to cancel it out.
Driver Unit Size
Bose QuietComfort Earbuds 2
9.3mm
Devialet Gemini 2 10mm
The Devialet Gemini 2 driver unit is 10mm in diameter, bigger drivers are more powerful, therefor producing better bass.
A driver unit is basically a mini speaker that produces sound in the device, its size corellates with the sound produced by the earbuds.
Bose QuietComfort Earbuds 2 driver unit is 9.3mm in diameter,
which implies that they have a smaller driver unit than that of Devialet Gemini 2 by 0.7mm
, a common assumption that driver units of a bigger size automatically produce better sound quality.
However, large drivers usually have difficulty producing high frequencies so yes, larger drivers are capable of generating louder sound, but this does not imply that they deliver better quality sound.
Lowest Frequency
Bose QuietComfort Earbuds 2
20Hz
Devialet Gemini 2 5Hz
Devialet Gemini 2's lowest frequency is at 5Hz, low-frequency response inidcates how well an audio component generates low frequencies that can be heard, and if it alters the signal while at it.
Bose QuietComfort Earbuds 2's lowest frequency is at 20Hz, this implies that
Devialet Gemini 2 can make sound with a juicier bass than the Bose QuietComfort Earbuds 2
Highest Frequency
Bose QuietComfort Earbuds 2
20,000Hz
Devialet Gemini 2 20,000Hz
The Devialet Gemini 2's highest frequency is at 20,000Hz, high-frequency response shows how well an audio device generates high human frequencies and if it makes any changes to the signal on its way through.
Bose QuietComfort Earbuds 2's highest frequency is at 20,000Hz, this implies that
both devices can generate equal treble
Sound Pressure Level
Bose QuietComfort Earbuds 2
✗
Devialet Gemini 2 120dB/mW
SPL, is the pressure level of sound, measured in decibels, dB, Devialet Gemini 2's measurement is 120dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
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