Has Active Noise Cancellation (Noise Control)
Sony WF 1000XM4
✓
JBL Reflect Aero TWS ✓
ANC utilises advanced kind of tech to actively cancel noise. ANC works when, it listens to the sound pattern outside and inside the earbud and after inverts the soundwaves to cancel it out. Simply put, it's like having +1 (sound from your surrounding) and producing -1 (inverted noise) to make zero hence "diluting" the noise.
JBL Reflect Aero TWS have ANC allowing you to listen at lower levels of volume, causing less ear fatigue as you don't need to crank up the earbuds volume to outcompete background sounds.
The Sony WF 1000XM4 too have Active Noise Cancellation which makes both earbuds ideal for flights and rush hour commutes. The JBL Reflect Aero TWS and Sony WF 1000XM4 work with different noise cancellation modes, pick the setting that suits your travel or that suites your relaxation time.
Has Passive Noise Reduction
Sony WF 1000XM4
✓
JBL Reflect Aero TWS ✓
JBL Reflect Aero TWS sit well in place, this creates a sound covering that reduces your environment sounds and also prevents the earbuds voice audio from leaking out at the same.
Both Sony WF 1000XM4, and JBL Reflect Aero TWS have passive noise reduction this means that they limit ambient noise instead of actively using technology to cancel it out.
Driver Unit Size
Sony WF 1000XM4
6mm
JBL Reflect Aero TWS 6.8mm
The JBL Reflect Aero TWS have a unit size of 6.8mm 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 device, its size determines the loudness of the earbuds.
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
, 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 are capable of generating louder sound, but this does not imply that they deliver better quality sound.
Lowest Frequency
Sony WF 1000XM4
20Hz
JBL Reflect Aero TWS 20Hz
JBL Reflect Aero TWS's lowest frequency is at 20Hz, low-frequency response measures if and how well a particular audio component produces low audible frequencies and if it makes any changes to the signal on its way through.
Sony WF 1000XM4's lowest frequency is at 20Hz, this means that
both devices make sound with equal bass
Highest Frequency
Sony WF 1000XM4
40,000Hz
JBL Reflect Aero TWS 20,000Hz
The JBL Reflect Aero TWS's highest frequency is at 20,000Hz, high-frequency response indicates how well a particular audio device makes high recognizable frequencies and if it changes to the signal on its way through.
Sony WF 1000XM4's highest frequency is at 40,000Hz, this implies that
Sony WF 1000XM4 can produce a clearer and crispier treble than the JBL Reflect Aero TWS
Sound Pressure Level
Sony WF 1000XM4
105dB/mW
JBL Reflect Aero TWS 99dB/mW
The sound pressure level, 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.
Sony WF 1000XM4's sound pressure level measurement is 105dB/mW. How loud something is can be perceived differently by separate persons, so we need to have the means to get a standard measurement of sound level expressed in numerical terms.
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