Has Active Noise Cancellation (Noise Control)
Sennheiser Momentum True Wireless 3
✓
Skullcandy Indy Fuel ✗
ANC makes use of more advanced technology to reduce unwanted ambient sounds. How it works, it listens to the sound pattern of incoming noise and then generates a mirror signal to counter it. Simply put, it's like taking +1 (noise) and producing -1 (inverted noise) to make 0 which results in a reduced level of noise.
Sennheiser Momentum True Wireless 3 have Active Noise Cancellation allowing you to listen at lower levels of volume, causing less ear fatigue as you don't need to crank up the device volume to overcome background sounds.
Has Passive Noise Reduction
Sennheiser Momentum True Wireless 3
✓
Skullcandy Indy Fuel ✓
The Skullcandy Indy Fuel stay tightly in place, this creates a sound seal that reduces background noise and also prevents the earbuds sound from leaking out at the same.
Both Sennheiser Momentum True Wireless 3, and Skullcandy Indy Fuel have passive noise reduction this means that both reduce ambient noise instead of actively using ANC to cancel it out.
Driver Unit Size
Sennheiser Momentum True Wireless 3
7mm
Skullcandy Indy Fuel 6mm
Skullcandy Indy Fuel driver unit is 6mm in diameter, the bigger the unit the more powerful, and can produce better bass.
The driver unit is the component that makes sound in the earbuds, its size determines the sound made by the earbuds.
Sennheiser Momentum True Wireless 3 driver unit is 7mm in diameter,
making them have a larger driver unit than that of Skullcandy Indy Fuel by 1mm
, a common assumption 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 imply that they deliver better quality sound.
Lowest Frequency
Sennheiser Momentum True Wireless 3
5Hz
Skullcandy Indy Fuel 20Hz
Skullcandy Indy Fuel's lowest frequency is at 20Hz, low-frequency response inidcates how well an audio device generates low recognizable frequencies and if it makes any changes to the signal while at it.
Sennheiser Momentum True Wireless 3's lowest frequency is at 5Hz, this means that
Sennheiser Momentum True Wireless 3 make sound with a juicier bass than the Skullcandy Indy Fuel
Highest Frequency
Sennheiser Momentum True Wireless 3
21000Hz
Skullcandy Indy Fuel 20000Hz
The Skullcandy Indy Fuel's highest frequency is at 20000Hz, high-frequency response measures if and how well an audio device produces high audible frequencies and if it changes to the signal while at it.
Sennheiser Momentum True Wireless 3's highest frequency is at 21000Hz, this means that
Sennheiser Momentum True Wireless 3 produce a clearer and crispier treble than the Skullcandy Indy Fuel
Sound Pressure Level
Sennheiser Momentum True Wireless 3
107dB/mW
Skullcandy Indy Fuel 105dB/mW
SPL, is the level of pressure of sound, in decibels, dB, Skullcandy Indy Fuel's measurement is 105dB/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 considered differently by different persons, so we need to have the means to get a standard measurement of sound level expressed in numerical terms.
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