Has Active Noise Cancellation (Noise Control)
Devialet Gemini 2
✓
JBL Reflect Aero TWS ✓
Active noise cancellation utilises more advanced technology to actively counter noise. How it works, it listens to the sound pattern of incoming noise and inverts the soundwaves to counter it. Simply put, it's like taking +1 (noise) and adding -1 (inverted noise) giving zero which results in a reduced level of noise.
Devialet Gemini 2 have ANC enabling you to listen at lower levels of volume, good for your ears as you don't need to crank up the device volume to outcompete background noise.
JBL Reflect Aero TWS too have Active Noise Cancellation which makes both devices ideal for plane rides and rush hour travels. Each operate with different noise cancellation settings, pick the mode that suits your travel or that suites your relaxation time.
Has Passive Noise Reduction
Devialet Gemini 2
✓
JBL Reflect Aero TWS ✓
The Devialet Gemini 2 stay well in place, creating a sound seal that reduces background noise and also prevents the earbuds sound from leaking out .
Both of these devices have passive noise reduction which means that both tone down ambient noise without using ANC to cancel it out.
Driver Unit Size
Devialet Gemini 2
10mm
JBL Reflect Aero TWS 6.8mm
Devialet Gemini 2 driver unit is 10mm in diameter, the bigger the unit the more powerful, therefor producing better bass.
The driver unit is the component that makes sound in the device, its size corellates with the sound produced by the earbuds.
JBL Reflect Aero TWS driver unit is 6.8mm in diameter,
which means that they have a smaller driver unit than that of Devialet Gemini 2 by 3.2mm
, many people have a misconception that driver units of a bigger size automatically produce better sound quality.
However, large drivers find it difficult to produce high frequencies so yeah, larger drivers can generate louder sound, but this does not indicate that they produce better quality sound.
Lowest Frequency
Devialet Gemini 2
5Hz
JBL Reflect Aero TWS 20Hz
The 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 on its way through.
JBL Reflect Aero TWS's lowest frequency is at 20Hz, this means that
Devialet Gemini 2 can make sound with a juicier bass than the JBL Reflect Aero TWS
Highest Frequency
Devialet Gemini 2
20,000Hz
JBL Reflect Aero TWS 20,000Hz
Devialet Gemini 2's highest frequency is at 20,000Hz, high-frequency response measures if and how well a particular audio device generates high human frequencies and if it adjustments to the signal while at it.
JBL Reflect Aero TWS's highest frequency is at 20,000Hz, this implies that
both devices can produce equal treble
Sound Pressure Level
Devialet Gemini 2
120dB/mW
JBL Reflect Aero TWS 99dB/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.
JBL Reflect Aero TWS's sound pressure level measurement is 99dB/mW. How loud something is can be perceived differently by different persons, so we need to have a way of getting a standard measurement of sound level expressed in numerical terms.
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