Has Active Noise Cancellation (Noise Control)
Sennheiser Momentum True Wireless 4
✓
Sony LinkBuds S ✓
ANC uses more advanced technology to actively cancel noise. ANC works when, it listens to the sound pattern outside and inside the earbud and generates a mirror signal to counter it. In simple terms, it's like taking +1 (sound from your surrounding) and adding -1 (inverted noise) giving 0 thus "diluting" the noise.
The Sennheiser Momentum True Wireless 4 have ANC allowing you to listen at lower levels of volume, good for your ears since you don't have to crank up the device volume to outcompete background sounds.
The Sony LinkBuds S too have Active Noise Cancellation making either of the earbuds ideal for plane rides and morning commutes. Each operate with different noise cancellation settings, pick the setting that you prefer for travel or that enhances your chill time.
Has Passive Noise Reduction
Sennheiser Momentum True Wireless 4
✓
Sony LinkBuds S ✓
The Sennheiser Momentum True Wireless 4 sit well in place, creating an acoustic covering that reduces your environment sounds well as preventing the device sound from leaking out .
Both of these devices have passive noise reduction this means that they tone down ambient noise instead of actively using ANC to cancel it out.
Driver Unit Size
Sennheiser Momentum True Wireless 4
7mm
Sony LinkBuds S 5mm
The Sennheiser Momentum True Wireless 4 driver unit is 7mm in diameter, bigger drivers are more powerful, therefor producing better bass.
A driver unit is basically a mini speaker that makes sound in the earbuds, its size dictates the loudness of the device.
Sony LinkBuds S driver unit is 5mm in diameter,
which implies that they have a smaller driver unit than that of Sennheiser Momentum True Wireless 4 by 2mm
, 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 it's true that, larger drivers can generate louder sound, but this does not mean that they deliver better quality sound.
Lowest Frequency
Sennheiser Momentum True Wireless 4
5Hz
Sony LinkBuds S 20Hz
The Sennheiser Momentum True Wireless 4's lowest frequency is at 5Hz, low-frequency response measures if and how well an audio device produces low frequencies that can be heard, and if it makes any changes to the signal while at it.
Sony LinkBuds S's lowest frequency is at 20Hz, this implies that
Sennheiser Momentum True Wireless 4 can make sound with a juicier bass than the Sony LinkBuds S
Highest Frequency
Sennheiser Momentum True Wireless 4
21,000Hz
Sony LinkBuds S 40,000Hz
The Sennheiser Momentum True Wireless 4's highest frequency is at 21,000Hz, high-frequency response tells how well a particular audio component produces high human frequencies and if it changes to the signal while at it.
Sony LinkBuds S's highest frequency is at 40,000Hz, this means that
Sony LinkBuds S can generate a clearer and crispier treble than the Sennheiser Momentum True Wireless 4
Sound Pressure Level
Sennheiser Momentum True Wireless 4
107dB/mW
Sony LinkBuds S ✗
The sound pressure level, is the pressure level of sound, measured in decibels, dB, Sennheiser Momentum True Wireless 4'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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