Has Active Noise Cancellation (Noise Control)
Sony WF 1000XM4
✓
JBL Reflect Aero TWS ✓
ANC uses more advanced kind of tech to actively cancel noise. ANC works when, it studies the sound pattern of incoming noise and then generates a mirror signal to cancel it out. In simple terms, it's like having +1 (sound from your surrounding) and producing -1 (inverted noise) to make 0 resulting in a reduced level of noise.
The JBL Reflect Aero TWS have Active Noise Cancellation allowing you to listen at lower levels of volume, causing less ear fatigue since you don't have to crank up the device volume to overcome background sounds.
The Sony WF 1000XM4 too have Active Noise Cancellation making both devices ideal for flights and rush hour commutes. Each work with different noise cancellation modes, pick the mode that suits your commute or that enhances your relaxation time.
Has Passive Noise Reduction
Sony WF 1000XM4
✓
JBL Reflect Aero TWS ✓
JBL Reflect Aero TWS stay tightly in place, creating a sound seal that reduces your environment noise while preventing the device voice audio from leaking out .
Both of these devices have passive noise reduction this implies that they tone down ambient noise without using ANC to cancel it out.
Driver Unit Size
Sony WF 1000XM4
6mm
JBL Reflect Aero TWS 6.8mm
JBL Reflect Aero TWS driver unit is 6.8mm in diameter, the bigger the unit the more powerful, and can produce better bass.
The driver unit is the component that produces sound in the earbuds, the unit size determines the sound made by the device.
Sony WF 1000XM4 driver unit is 6mm in diameter,
which implies that they have a smaller driver unit than that of JBL Reflect Aero TWS by 0.8mm
, 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 can generate louder sound, but this does not indicate that they produce better quality sound.
Lowest Frequency
Sony WF 1000XM4
20Hz
JBL Reflect Aero TWS 20Hz
The JBL Reflect Aero TWS's lowest frequency is at 20Hz, low-frequency response inidcates how well an audio device generates low audible frequencies and if it makes any changes to the signal while at it.
Sony WF 1000XM4's lowest frequency is at 20Hz, this means that
both devices make sound with equal bass
Highest Frequency
Sony WF 1000XM4
40000Hz
JBL Reflect Aero TWS 20000Hz
The JBL Reflect Aero TWS's highest frequency is at 20000Hz, high-frequency response measures if and how well an audio component makes high audible frequencies and if it adjustments to the signal on its way through.
Sony WF 1000XM4's highest frequency is at 40000Hz, this means that
Sony WF 1000XM4 can produce a clearer and crispier treble than the JBL Reflect Aero TWS
Sound Pressure Level
Sony WF 1000XM4
✗
JBL Reflect Aero TWS 99dB/mW
SPL, is the level of pressure of sound, measured in decibels, dB, JBL Reflect Aero TWS's measurement is 99dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
Has A Neodymium Magnet
Sony WF 1000XM4
✓
JBL Reflect Aero TWS ✗
The Sony WF 1000XM4 have neodymium magnets, if used in earbuds produce a higher sensitivity and substantial sound output using less power to do so. They can help produce music at quite a high sound pressure level, using high magnetic flux.
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