Has Active Noise Cancellation (Noise Control)
Sennheiser Momentum True Wireless 4
✓
Sennheiser Momentum True Wireless 3 ✓
ANC makes use of advanced kind of tech to actively cancel noise. ANC works when, it studies the sound pattern of incoming noise and inverts the soundwaves to counter it. Simply put, it's like having +1 (sound from your surrounding) then producing -1 (counter sound by the device) to make 0 which results in a reduced level of noise.
The Sennheiser Momentum True Wireless 4 have ANC enabling you to listen at lower volume levels, good for your ears since you don't need to crank up the earbuds volume to outcompete background sounds.
The Sennheiser Momentum True Wireless 3 too have ANC making either of the devices ideal for plane rides and rush hour travels. Each operate with different noise cancellation modes, pick the mode that suits your commute or that enhances your relaxation time.
Has Passive Noise Reduction
Sennheiser Momentum True Wireless 4
✓
Sennheiser Momentum True Wireless 3 ✓
Sennheiser Momentum True Wireless 4 sit tightly in place, creating an acoustic seal that tones down background noise while preventing the earbuds voice audio from leaking out at the same.
Both of these devices have passive noise reduction which means that both reduce ambient noise without using ANC to cancel it out.
Driver Unit Size
Sennheiser Momentum True Wireless 4
7mm
Sennheiser Momentum True Wireless 3 7mm
Sennheiser Momentum True Wireless 4 driver unit is 7mm in diameter, bigger drivers are more powerful, and can produce better bass.
The driver unit is the component that produces sound in the earbuds, the unit size corellates with the loudness of the earbuds.
Sennheiser Momentum True Wireless 3 driver unit is 7mm in diameter,
making both devices similar in how loud their sound can get
, 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 it's true that, larger drivers are capable of generating louder sound, but this does not indicate that they deliver better quality sound.
Lowest Frequency
Sennheiser Momentum True Wireless 4
5Hz
Sennheiser Momentum True Wireless 3 5Hz
Sennheiser Momentum True Wireless 4's lowest frequency is at 5Hz, low-frequency response inidcates how well a particular audio device produces low frequencies that can be heard, and if it alters the signal on its way through.
Sennheiser Momentum True Wireless 3's lowest frequency is at 5Hz, this implies that
both devices produce equal bass
Highest Frequency
Sennheiser Momentum True Wireless 4
21,000Hz
Sennheiser Momentum True Wireless 3 21,000Hz
Sennheiser Momentum True Wireless 4's highest frequency is at 21,000Hz, high-frequency response measures if and how well an audio component makes high audible frequencies and if it makes any adjustments to the signal while at it.
Sennheiser Momentum True Wireless 3's highest frequency is at 21,000Hz, this implies that
both devices generate equal treble
Sound Pressure Level
Sennheiser Momentum True Wireless 4
107dB/mW
Sennheiser Momentum True Wireless 3 107dB/mW
SPL, is the pressure level of sound, 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.
Sennheiser Momentum True Wireless 3's sound pressure level measurement is 107dB/mW. How loud something is can be perceived differently by separate people, so we need to have a way of getting an objective measurement of sound level expressed in numerical terms.
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