Has Active Noise Cancellation (Noise Control)
Audio Technica ATH TWX9
✓
Bowers & Wilkins PI7 ✓
ANC utilises more advanced technology to actively counter noise. ANC works when, it studies the sound pattern of incoming noise and then generates a mirror signal to cancel it out. Simply put, it's like taking +1 (noise) and producing -1 (inverted noise) giving 0 hence "diluting" the noise.
The Audio Technica ATH TWX9 have Active Noise Cancellation allowing you to listen at lower levels of volume, good for your ears since you don't have to crank up the device volume to overcome background sounds.
The Bowers & Wilkins PI7 too have ANC which makes both devices ideal for flights and rush hour commutes. The Audio Technica ATH TWX9 and Bowers & Wilkins PI7 work with different noise cancellation modes, pick the noise cancellation type that suits your commute or that enhances your relaxation time.
Has Passive Noise Reduction
Audio Technica ATH TWX9
✓
Bowers & Wilkins PI7 ✓
The Audio Technica ATH TWX9 stay well in place, this creates a sound seal that reduces background sounds and also prevents the device music from leaking out at the same.
Both of these devices have passive noise reduction which means that both limit ambient noise instead of actively using technology to cancel it out.
Driver Unit Size
Audio Technica ATH TWX9
5.8mm
Bowers & Wilkins PI7 9.2mm
The Audio Technica ATH TWX9 have a unit size of 5.8mm in diameter, bigger drivers are more powerful, and can produce better bass.
A driver unit is basically a mini speaker that produces sound in the earbuds, its size dictates the loudness of the device.
Bowers & Wilkins PI7 driver unit is 9.2mm in diameter,
making them have a larger driver unit than that of Audio Technica ATH TWX9 by 3.4mm
, many people have a misconception 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 indicate that they deliver better quality sound.
Lowest Frequency
Audio Technica ATH TWX9
20Hz
Bowers & Wilkins PI7 10Hz
Audio Technica ATH TWX9's lowest frequency is at 20Hz, low-frequency response inidcates how well an audio component generates low audible frequencies and if it alters the signal on its way through.
Bowers & Wilkins PI7's lowest frequency is at 10Hz, this means that
Bowers & Wilkins PI7 produce a juicier bass than the Audio Technica ATH TWX9
Highest Frequency
Audio Technica ATH TWX9
40000Hz
Bowers & Wilkins PI7 20000Hz
The Audio Technica ATH TWX9's highest frequency is at 40000Hz, high-frequency response indicates how well an audio device generates high recognizable frequencies and if it makes any adjustments to the signal while at it.
Bowers & Wilkins PI7's highest frequency is at 20000Hz, this implies that
Audio Technica ATH TWX9 can produce a clearer and crispier treble than the Bowers & Wilkins PI7
Sound Pressure Level
Audio Technica ATH TWX9
102dB/mW
Bowers & Wilkins PI7 ✗
The sound pressure level, is the pressure level 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.
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