Has Active Noise Cancellation (Anc)
Sony WH CH720N
✓
Adidas RPT 02 Sol ✗
Active noise cancellation uses more advanced technology to actively counter noise. How it works, it detects and analyzes the sound pattern of incoming noise and then generates a mirror signal to cancel it out. In simple terms, it's like taking +1 outside (noise from your surrounding) and adding -1 inside (counter sound within the device) to make zero resulting in a reduced level of noise.
Sony WH CH720N allow you to listen at lower volume levels, causing less ear fatigue as you don't have to crank up the volume to overcome background noise.
Has Passive Noise Reduction
Sony WH CH720N
✓
Adidas RPT 02 Sol ✗
Passive Noise Cancellation uses well-designed ear cups to seal out environment noise. This is used for both in-ear earphones and over-ear headphones where the headphone itself will keep surrounding noise out.
The Sony WH CH720N sits tightly in place, creating an acoustic seal that reduces background noise and prevents your music from leaking out.
Lowest Frequency
Sony WH CH720N
20Hz
Adidas RPT 02 Sol 20Hz
Low-frequency response measures if and how well a particular audio device reproduces low audible frequencies and if it makes any changes to the signal while at it. Sony WH CH720N's lowest frequency is at 20Hz, the lower the low-frequency response, the stronger and juicier the bass.
Adidas RPT 02 Sol's lowest frequency is at 20Hz, this implies that
both devices produce equal bass
Highest Frequency
Sony WH CH720N
20000Hz
Adidas RPT 02 Sol 20000Hz
High frequency response measures if and how well a particular audio device reproduces high audible frequencies and if it changes to the signal on the way through. Sony WH CH720N's highest frequency is at 20000Hz, the higher the high-frequency response, the clearer and crispier the treble.
Adidas RPT 02 Sol's highest frequency is at 20000Hz, this implies that
both devices produce equal treble
Sound Pressure Level
Sony WH CH720N
99dB/mW
Adidas RPT 02 Sol 105dB/mW
Sound pressure is the average variation in atmospheric pressure caused by the sound, the sound level .i.e how loud something is can be perceived differently by different people so we need to have a way of getting an objective measurement of sound level expressed in numerical terms.
The sound pressure level, SPL, is the pressure level of a sound, measured in decibels, dB, Sony WH CH720N's measurement is 99dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
Adidas RPT 02 Sol's sound pressure level measurement is 105dB/mW.
Driver Unit Size
Sony WH CH720N
30mm
Adidas RPT 02 Sol 45mm
The driver unit is the component that produces sound in the device, its size dictates the loudness of the headphone. Sony WH CH720N driver unit is 30mm in diameter, bigger drivers are more powerful and can produce better bass.
Adidas RPT 02 Sol driver unit is 45mm in diameter,
making them have a larger driver unit than that of Sony WH CH720N by 15mm
, as many tend to believe that driver units of a bigger size automatically produce better sound quality.
However, large drivers usually have difficulty reproducing high frequencies so yes, larger drivers can generate louder sound, but this does not mean that they deliver better sound.
Impedance
Sony WH CH720N
31Ohms
Adidas RPT 02 Sol 32Ohms
Impedance is the device's resistance to the electromagnetic current, as electricity flows through a wire, it faces electrical resistance that counters the flow of current. The resistance of a conductor is measured in ohms. Sony WH CH720N's impedance is 31Ohms, the lower the impedance, the easier it is to get higher volume and requires less power.
Adidas RPT 02 Sol's impedance is 32Ohms. The impedance of earbuds is the electrical resistance of the driver unit present on the inside.
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