Has Active Noise Cancellation (Noise Control)
Bowers & Wilkins PI7
✓
Nuraphone NuraTrue ✓
Active noise cancellation makes use of advanced kind of tech to actively cancel noise. ANC works when, it studies the sound pattern outside and inside the earbud and after generates a mirror signal to counter it. In simple terms, it's like taking +1 (sound from your surrounding) and adding -1 (inverted noise) to make 0 which results in a reduced level of noise.
Nuraphone NuraTrue have Active Noise Cancellation enabling you to listen at lower levels of volume, causing less ear fatigue as you don't need to crank up the earbuds volume to overcome background sounds.
Bowers & Wilkins PI7 too have Active Noise Cancellation which makes either of the devices ideal for flights and rush hour commutes. The Nuraphone NuraTrue and Bowers & Wilkins PI7 work with different noise cancellation types, pick the mode that you prefer for commute or that enhances your chill time.
Has Passive Noise Reduction
Bowers & Wilkins PI7
✓
Nuraphone NuraTrue ✓
The Nuraphone NuraTrue stay well in place, this creates an acoustic covering that tones down your environment noise well as preventing the device sound from leaking out at the same.
Both of these devices have passive noise reduction which implies that both tone down ambient noise without using technology to cancel it out.
Driver Unit Size
Bowers & Wilkins PI7
9.2mm
Nuraphone NuraTrue 10mm
The Nuraphone NuraTrue have a unit size of 10mm in diameter, bigger drivers are more powerful, and can produce better bass.
A driver unit is basically a mini speaker that makes sound in the earbuds, its size dictates the loudness of the earbuds.
Bowers & Wilkins PI7 driver unit is 9.2mm in diameter,
which implies that they have a smaller driver unit than that of Nuraphone NuraTrue by 0.8mm
, a common assumption 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 are capable of generating louder sound, but this does not imply that they produce better quality sound.
Lowest Frequency
Bowers & Wilkins PI7
10Hz
Nuraphone NuraTrue 20Hz
Nuraphone NuraTrue's lowest frequency is at 20Hz, low-frequency response measures if and how well a particular audio component generates low frequencies that can be heard, and if it makes any changes to the signal on its way through.
Bowers & Wilkins PI7's lowest frequency is at 10Hz, this means that
Bowers & Wilkins PI7 can produce a juicier bass than the Nuraphone NuraTrue
Highest Frequency
Bowers & Wilkins PI7
20000Hz
Nuraphone NuraTrue 20000Hz
Nuraphone NuraTrue's highest frequency is at 20000Hz, high-frequency response tells how well an audio device generates high audible 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
both devices produce equal treble
Sound Pressure Level
Bowers & Wilkins PI7
✗
Nuraphone NuraTrue 108dB/mW
The sound pressure level, is the pressure level of sound, measured in decibels, dB, Nuraphone NuraTrue's measurement is 108dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
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