Has Active Noise Cancellation (Noise Control)
Audio Technica ATH TWX9
✓
Bowers & Wilkins PI7 ✓
ANC makes use of more advanced technology to reduce unwanted ambient sounds. How it works, it detects and analyzes the sound pattern of incoming noise and after generates a mirror signal to counter it. Simply put, it's like taking +1 (noise) then producing -1 (inverted noise) to make 0 which results in a reduced level of noise.
Audio Technica ATH TWX9 have ANC enabling you to listen at lower levels of volume, good for your ears since you don't need to crank up the earbuds volume to overcome background sounds.
Bowers & Wilkins PI7 too have Active Noise Cancellation making both earbuds ideal for plane rides and rush hour travels. Each work with different noise cancellation types, pick the setting that suits your commute or that suites your relaxation time.
Has Passive Noise Reduction
Audio Technica ATH TWX9
✓
Bowers & Wilkins PI7 ✓
Audio Technica ATH TWX9 stay tightly in place, this creates a sound seal that tones down background noise well as preventing the earbuds voice audio from leaking out .
Both Bowers & Wilkins PI7, and Audio Technica ATH TWX9 have passive noise reduction this implies that both tone down ambient noise without 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, the bigger the unit the more powerful, and can produce better bass.
A driver unit is the component that makes sound in the earbuds, its size determines 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
, a common assumption that driver units of a bigger size automatically produce better sound quality.
However, large drivers find it difficult to produce high frequencies so yes, larger drivers are capable of generating louder sound, but this does not imply that they deliver better quality sound.
Lowest Frequency
Audio Technica ATH TWX9
20Hz
Bowers & Wilkins PI7 10Hz
The Audio Technica ATH TWX9's lowest frequency is at 20Hz, low-frequency response inidcates how well an audio device generates low recognizable frequencies and if it alters the signal while at it.
Bowers & Wilkins PI7's lowest frequency is at 10Hz, this means that
Bowers & Wilkins PI7 can produce a juicier bass than the Audio Technica ATH TWX9
Highest Frequency
Audio Technica ATH TWX9
40000Hz
Bowers & Wilkins PI7 20000Hz
Audio Technica ATH TWX9's highest frequency is at 40000Hz, high-frequency response measures if and how well a particular audio device generates high audible frequencies and if it makes any changes to the signal while at it.
Bowers & Wilkins PI7's highest frequency is at 20000Hz, this means that
Audio Technica ATH TWX9 generate a clearer and crispier treble than the Bowers & Wilkins PI7
Sound Pressure Level
Audio Technica ATH TWX9
102dB/mW
Bowers & Wilkins PI7 ✗
SPL, is the pressure level of sound, 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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