Has Active Noise Cancellation (Anc)
Bang & Olufsen Beoplay Portal
✓
Adidas RPT 01 ✗
Active noise cancellation uses more advanced technology to reduce unwanted ambient sounds. 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 hence "diluting" the noise.
Bang & Olufsen Beoplay Portal 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
Bang & Olufsen Beoplay Portal
✓
Adidas RPT 01 ✗
Passive Noise Cancellation uses well-designed ear cups to seal out unwanted noise. This is used for both in-ear earphones and over-ear headphones where the headphone itself will keep surrounding noise out.
The Bang & Olufsen Beoplay Portal sits tightly in place, creating an acoustic seal that reduces background noise and prevents your music from leaking out.
Lowest Frequency
Bang & Olufsen Beoplay Portal
20Hz
Adidas RPT 01 ✗
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. Bang & Olufsen Beoplay Portal's lowest frequency is at 20Hz, the lower the low-frequency response, the stronger and juicier the bass.
Highest Frequency
Bang & Olufsen Beoplay Portal
22000Hz
Adidas RPT 01 ✗
High frequency response measures if and how well an audio device reproduces high audible frequencies and if it changes to the signal while at it. Bang & Olufsen Beoplay Portal's highest frequency is at 22000Hz, the higher the high-frequency response, the clearer and crispier the treble.
Sound Pressure Level
Bang & Olufsen Beoplay Portal
95dB/mW
Adidas RPT 01 ✗
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 the means to get 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, Bang & Olufsen Beoplay Portal's measurement is 95dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
Driver Unit Size
Bang & Olufsen Beoplay Portal
40mm
Adidas RPT 01 ✗
The driver unit is the component that produces sound in the device, its size dictates the loudness of the headphone. Bang & Olufsen Beoplay Portal driver unit is 40mm in diameter, bigger drivers are more powerful and can produce better bass.
Drivers Count
Bang & Olufsen Beoplay Portal
2only
Adidas RPT 01 ✗
A speaker driver is an individual transducer that converts electrical energy to sound waves. Drivers come in different sizes and modes, but generally, you'll find three types: tweeter driver, which handles the high-frequency treble range (above 2,000 Hz), and midrange driver: which handles the midrange frequencies (200 Hz to 2,000 Hz). Woofer driver: which handles the low-frequency bass range (below 200 Hz).
Based on the frequencies they handle more drivers may result in better sound quality, Bang & Olufsen Beoplay Portal have 2 only.
Impedance
Bang & Olufsen Beoplay Portal
24Ohms
Adidas RPT 01 ✗
Impedance is the device's resistance to the electromagnetic current, when electricity flows through a conductor, it faces electrical resistance that counters the flow of current. The resistance of a conductor is measured in ohms. Bang & Olufsen Beoplay Portal's impedance is 24Ohms, the lower the impedance, the easier it is to get higher volume and requires less power.
Has A Neodymium Magnet
Bang & Olufsen Beoplay Portal
✓
Adidas RPT 01 ✗
Neodymium magnets when used in audio devices produce a higher sensitivity and substantial sound output while using less power. They can help produce music at quite a high sound pressure level, SPL, with the use of high magnetic flux. The Bang & Olufsen Beoplay Portal have this type of magnet.
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