Has Active Noise Cancellation (Noise Control)
Bose QuietComfort Earbuds 2
✓
Sennheiser Momentum True Wireless 3 ✓
ANC makes use of advanced technology to actively cancel noise. How it works, it detects and analyzes the sound pattern outside and inside the earbud and then inverts the soundwaves to counter it. In simple terms, it's like having +1 (sound from your surrounding) and producing -1 (inverted noise) giving zero therefore "diluting" the noise.
The Bose QuietComfort Earbuds 2 have Active Noise Cancellation enabling you to listen at lower levels of volume, causing less ear fatigue since you don't have to crank up the earbuds volume to overcome background sounds.
Sennheiser Momentum True Wireless 3 too have ANC making both earbuds ideal for plane rides and rush hour travels. The Bose QuietComfort Earbuds 2 and Sennheiser Momentum True Wireless 3 work with different noise cancellation settings, pick the noise cancellation type that you prefer for travel or that suites your chill time.
Has Passive Noise Reduction
Bose QuietComfort Earbuds 2
✓
Sennheiser Momentum True Wireless 3 ✓
Bose QuietComfort Earbuds 2 sit well in place, this creates an acoustic seal that reduces your environment sounds and also prevents the earbuds sound from leaking out at the same.
Both of these devices have passive noise reduction which implies that they reduce ambient noise without using ANC to cancel it out.
Driver Unit Size
Bose QuietComfort Earbuds 2
9.3mm
Sennheiser Momentum True Wireless 3 7mm
The Bose QuietComfort Earbuds 2 have a unit size of 9.3mm in diameter, the bigger the unit the more powerful, therefor producing better bass.
A driver unit is basically a mini speaker that produces sound in the earbuds, the unit size dictates the sound made by the device.
Sennheiser Momentum True Wireless 3 driver unit is 7mm in diameter,
which means that they have a smaller driver unit than that of Bose QuietComfort Earbuds 2 by 2.3mm
, as many tend to believe that driver units of a bigger size automatically produce better sound quality.
However, large drivers find it difficult to produce high frequencies so yes, larger drivers can generate louder sound, but this does not imply that they deliver better quality sound.
Lowest Frequency
Bose QuietComfort Earbuds 2
20Hz
Sennheiser Momentum True Wireless 3 5Hz
The Bose QuietComfort Earbuds 2's lowest frequency is at 20Hz, low-frequency response inidcates how well a particular audio device generates low frequencies that can be heard, and if it makes any changes to the signal on its way through.
Sennheiser Momentum True Wireless 3's lowest frequency is at 5Hz, this means that
Sennheiser Momentum True Wireless 3 produce a juicier bass than the Bose QuietComfort Earbuds 2
Highest Frequency
Bose QuietComfort Earbuds 2
20,000Hz
Sennheiser Momentum True Wireless 3 21,000Hz
Bose QuietComfort Earbuds 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 makes any changes to the signal while at it.
Sennheiser Momentum True Wireless 3's highest frequency is at 21,000Hz, this implies that
Sennheiser Momentum True Wireless 3 can generate a clearer and crispier treble than the Bose QuietComfort Earbuds 2
Sound Pressure Level
Bose QuietComfort Earbuds 2
✗
Sennheiser Momentum True Wireless 3 107dB/mW
SPL, is the level of pressure of sound, measured in decibels, dB, Sennheiser Momentum True Wireless 3's measurement is 107dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
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