Has Active Noise Cancellation (Noise Control)
Sony WF 1000XM4
✓
Audio Technica ATH TWX9 ✓
ANC makes use of advanced technology to reduce ambient sounds. How it works, it listens to the sound pattern of incoming noise and then generates a mirror signal to counter it. In simple terms, it's like taking +1 (noise) then adding -1 (counter sound by the device) to make 0 hence "diluting" the noise.
The Audio Technica ATH TWX9 have Active Noise Cancellation enabling you to listen at lower volume levels, causing less ear fatigue as you don't need to crank up the earbuds volume to outcompete background sounds.
Sony WF 1000XM4 too have ANC making either of the earbuds ideal for flights and rush hour commutes. Each operate 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
✓
Audio Technica ATH TWX9 ✓
The Audio Technica ATH TWX9 stay tightly in place, creating a sound covering that tones down your environment 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 they reduce ambient noise without using technology to cancel it out.
Driver Unit Size
Sony WF 1000XM4
6mm
Audio Technica ATH TWX9 5.8mm
Audio Technica ATH TWX9 have a unit size of 5.8mm 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 dictates the loudness of the earbuds.
Sony WF 1000XM4 driver unit is 6mm in diameter,
making them have a larger driver unit than that of Audio Technica ATH TWX9 by 0.2mm
, 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 yeah, larger drivers can generate louder sound, but this does not imply that they produce better quality sound.
Lowest Frequency
Sony WF 1000XM4
20Hz
Audio Technica ATH TWX9 20Hz
Audio Technica ATH TWX9's lowest frequency is at 20Hz, low-frequency response inidcates how well an audio device produces low frequencies that can be heard, 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 produce equal bass
Highest Frequency
Sony WF 1000XM4
40000Hz
Audio Technica ATH TWX9 40000Hz
The Audio Technica ATH TWX9's highest frequency is at 40000Hz, high-frequency response shows how well a particular audio component produces high audible frequencies and if it makes any changes to the signal while at it.
Sony WF 1000XM4's highest frequency is at 40000Hz, this implies that
both devices produce equal treble
Sound Pressure Level
Sony WF 1000XM4
105dB/mW
Audio Technica ATH TWX9 102dB/mW
SPL, is the level of pressure of sound, measured in decibels, dB, Audio Technica ATH TWX9's measurement is 102dB/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. The sound pressure level, a device is can be taken differently by separate people, so we need to have the means to get a standard measurement of sound level expressed in numerical terms.
Has A Neodymium Magnet
Sony WF 1000XM4
✓
Audio Technica ATH TWX9 ✗
Sony WF 1000XM4 have neodymium magnets, if used in audio devices produce a higher sensitivity and substantial sound output while using less power. They can help generate music at quite a high SPL, using high magnetic flux.
A Review By Comparison Of The Echo Buds 3Rd Generation Vs. Audio Technica Ath Twx9
A Review By Comparison Of The Technics Eah Az80 Vs. Audio Technica Ath Twx9