Has Active Noise Cancellation (Noise Control)
Sony WF 1000XM4
✓
Technics EAH AZ80 ✓
ANC utilises advanced kind of tech to actively counter noise. ANC works when, it listens to the sound pattern of incoming noise and after generates a mirror signal to cancel it out. In simple terms, it's like taking +1 (noise) and adding -1 (inverted noise) to make zero which results in a reduced level of noise.
Technics EAH AZ80 have Active Noise Cancellation allowing you to listen at lower levels of volume, causing less ear fatigue as you don't have to crank up the device volume to overcome background noise.
The Sony WF 1000XM4 too have Active Noise Cancellation making both earbuds ideal for flights and rush hour travels. The Technics EAH AZ80 and Sony WF 1000XM4 operate with different noise cancellation modes, pick the mode that you prefer for commute or that enhances your relaxation time.
Has Passive Noise Reduction
Sony WF 1000XM4
✓
Technics EAH AZ80 ✓
Technics EAH AZ80 stay well in place, this creates an acoustic covering that tones down background sounds and also prevents the earbuds voice audio from leaking out at the same.
Both of these devices have passive noise reduction this means that both reduce ambient noise instead of actively using ANC to cancel it out.
Driver Unit Size
Sony WF 1000XM4
6mm
Technics EAH AZ80 10mm
Technics EAH AZ80 have a unit size of 10mm in diameter, the bigger the unit the more powerful, and can produce better bass.
The driver unit is basically a mini speaker that makes sound in the earbuds, its size determines the sound made by the earbuds.
Sony WF 1000XM4 driver unit is 6mm in diameter,
which implies that they have a smaller driver unit than that of Technics EAH AZ80 by 4mm
, as many tend to believe that driver units of a bigger size automatically produce better sound quality.
However, large drivers usually have difficulty producing high frequencies so yes, larger drivers can generate louder sound, but this does not imply that they produce better quality sound.
Lowest Frequency
Sony WF 1000XM4
20Hz
Technics EAH AZ80 20Hz
The Technics EAH AZ80's lowest frequency is at 20Hz, low-frequency response inidcates how well a particular audio device 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 implies that
both devices can make sound with equal bass
Highest Frequency
Sony WF 1000XM4
40,000Hz
Technics EAH AZ80 40,000Hz
Technics EAH AZ80's highest frequency is at 40,000Hz, high-frequency response shows how well a particular audio device produces high human 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
both devices generate equal treble
Sound Pressure Level
Sony WF 1000XM4
105dB/mW
Technics EAH AZ80 ✗
SPL, is the pressure level of sound, in decibels, dB, Sony WF 1000XM4's measurement is 105dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
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