Harman Kardon SOHO II NC is an active noise reduction headset, its price is not expensive, Haitao channel purchase or online shopping price is more than 500 yuan. SOHO II NC for in-ear design, noise reduction Need to connect a small box to complete the relevant circuit and battery placement. For the active noise reduction headphones Soomal evaluation is not much, we do not have much AB comparison object, but the performance of the previous evaluation of BOSE QC20 is still fresh. The Harman Kardon SOHO II NC, which has a significantly lower price, can have several levels of BOSE QC20? Thank you for sending a new prototype.
The Harman Kardon SOHO II NC is an in-ear earphone that looks very traditional. It is said that it is almost the same as AKG's K391 noise canceling earphone, and the SOHO II NC has more external ear wing accessories than the K391NC. To ensure the stability of wearing. And AKG K391NC's licensed price is more than 1,000 yuan, Haitao price is basically the same as SOHO II NC, 500-600 yuan. Are they the same? From the shape, parameters, it is true, but Is the specific subjective hearing consistent? There is no conditional verification today.
SOHO II NC uses the in-ear headphones to make the active noise reduction common architectural design. Since the space required for the noise reduction circuit and the power supply battery is not provided by the in-ear earphones [headphones are available], the connection is used. It leads to an external small box. The connection between the SOHO II NC earphone itself and the external box is fixed and dead, and cannot be separated. The external box provides a 3.5mm interface, which can be connected to the mobile phone through the connection cable. , the player and other audio sources connected.
The external battery case of SOHO II NC is lighter in weight. The measured weight of the small box is about 20 grams, and the weight of the external box together with the headphone cable and the earphone is 40 grams. That is to say, the box is usually used when it is used. Put it in your clothes or trouser pocket with your mobile phone and walkman. Connect the detachable cable between the audio source and the external box. The short line is about 40cm and the long line is about 1m. If you plan to put it in your trouser pocket, it seems to be a long line. It is more suitable. The total length of the earphone cable connected to the external box is 1 meter, and the length of the left and right channel is 80cm. Perhaps the weight of the external box is too light. This time, the SOHO II NC always feels that the pocket line is messy. The box is also easier to be entangled or raised. The BOSE QC20's external box is much larger, but it seems to have a counterweight and a thin thickness. Is there really no such problem? Or it is when the QC20 is evaluated. Being attracted by its effects did not care about these small problems.
In addition to a 3.5mm interface, the SOHO II NC external box also has a standard Micro USB interface for charging the external box. The official theoretical data can achieve 35 hours after the noise reduction function. There is a switch on the box that can turn the noise reduction function on or off. In the off state, the headphones will sound like sound, but the sound performance is very different. We will talk about it specifically below. The material and lighting effect of this switch is very design. Yes, the frosted translucent switch is light-transparent like a paint finish, quite retro.
The earphone part of the SOHO II NC is made of metal-aluminum material, the surface is treated with a slight brushing process, and the back has a round turning pattern. The deep horizontal stripes in the middle replace the words of AKG on the K391NC. The netizen said that this line is not in the center? This is because the plane is a visual error caused by the cone. The rubber plug material in the ear part of the earphone is also relatively thick and hard, ensuring better sealing when worn. It is said that it is better to be sealed when worn. Unlike the AKG K391NC, the Harman Kardon SOHO II NC comes with three sizes of ear flaps that can be placed over the outer ear recesses for better stability. This is visible in BOSE in-ear headphones. To, and more and more moving-type in-ear headphones will be equipped with this accessory, it does help the stability of wearing.
SOHO II NC also comes with a one-touch wire control and microphone for mobile phone calls. Single button can pause tracks and answer calls.
Noise reduction effect experience: After the active noise reduction switch of SOHO II NC is turned on, the effect of noise reduction on the sense of hearing can be clearly felt. The signal-to-noise ratio of the SOHO II NC performs well when not playing music, which is better than many entry-level initiatives. Noise-cancelling headphones perform better [noise reduction, amp circuit work has noise floor]. However, the first feeling is that it still does not reach the very obvious sense of tranquility after BOSE QC20 is turned on.
Walking on the road, there is a traffic flow through the environment. Experience the noise reduction effect [no music], the quietness and low-frequency noise reduction effect seems to be more with BOSE QC20 in the case of less traffic. Close. But the traffic is slightly dense. Although the low frequency noise and the tire friction noise and wind noise are shielded from a very large proportion of the engine, the residual part of the low frequency part and the high frequency part of the intermediate frequency are still not at the same level as the BOSE QC20. Of course, there is no Compared with the active noise reduction function, the SOHO II NC's active noise reduction performance is good, the effect is very obvious.
In the use of buses, the low-frequency noise of the engine will still have obvious residual. Considering the performance of different noise pressures SOHO II NC, we speculate that the noise reduction level and BOSE of SOHO II NC under the high-intensity noise of the aircraft Still not at one level. But better than SONY Walkman noise reduction, and have used some entry-mounted noise canceling headphones.
When walking or running, the in-ear headphones will enhance the footsteps of the incoming person because of the stethoscope effect, the noise caused by the wind and the earphone wire and the earphone friction. After the active noise reduction is turned on, the SOHO II NC can be well eliminated. Wire wind noise, even the wire jitter slightly hits the noise brought by the clothes. The footsteps are also significantly weakened.
However, the SOHO II NC noise reduction algorithm seems to have a flaw. In the process of moving with the earphones, even if it is slow, a slight breeze blows, the noise reduction error can be heard in the earphone, and the wind is consistent with the wind rhythm. Whirring. This is of course not heard when you turn on the music, but when you turn off the music and only turn on the noise reduction, you can still hear it clearly. This is obviously not ideal.
Overall, the active noise reduction effect of SOHO II NC is obvious, and the noise reduction level is basically satisfactory. We do not have an objective indicator to explain it. However, in terms of signal-to-noise ratio, it is superior to Sony Walkman M504 active noise reduction level, noise. The elimination is also slightly better than the SONY M504. But what is certain is that the noise reduction level of the BOSE QC20 is completely out of one level. Although the noise reduction effect on the bus and busy roads is already very satisfactory, it will not be like Like the QC20, light and noise reduction is very addictive.
Subjective sense of hearing: Since the active noise reduction is achieved by picking up the noise signal and processing it in real time, by playing the inverse phase signal to cancel the noise, it has a certain loss to the music played by the earphone itself. Therefore, the noise reduction system must not only accurately calculate the noise, but also Compensate for sound reproduction.
Therefore, we can see that the SOHO II NC and other noise-cancelling headphones are connected to the external box, because the noise reduction method is not good, and the sound performance is difficult to predict. Although SOHO II NC It can work when the noise reduction is not turned on, or when the external box is completely dead. You can hear the sound, but from the overall adjustment, the best state of this earphone must be after the noise reduction function is turned on. The sound is more balanced, full, and the overall sound quality is relatively better.
The official SOHO II NC indicator has a sensitivity of 107dB when the noise reduction function is not turned on, and the sensitivity is 115dB when the noise reduction function is turned on. The difference of 8dB is still very large. This is also the case where the noise reduction circuit also functions as a small amp. effect.
We use the iPhone to experience the SOHO II NC. The noise reduction experience mentioned in the previous article, we are specifically to compare its noise reduction effect, without playing the music. In fact, while playing music while turning on noise reduction, SOHO II The NC has clearly eliminated the noise on the bus.
SOHO II NC is equipped with iPhone when the noise reduction function is not turned on. The sound style is relatively light, but unlike BOSE, it retains the high-frequency resolution, and the high frequency is certainly not as dark as BOSE. However, we speculate that it is guaranteed. It has a better effect when the noise reduction is turned on, so the SOHO II NC has a poor intermediate frequency dynamics in the normal state, and it seems that the high frequency is slightly more.
After the noise reduction function is turned on, the overall dynamics of the SOHO II NC will be greatly improved. It seems that the design of many active noise canceling headphones is slightly different. The quality of the SOHO II NC headphones itself has a large margin, and the noise reduction function is not turned on. It is necessary to obviously pull up the high frequency. Instead, the intermediate frequency dynamics are greatly compensated. The middle and high frequency parts are slightly elevated. In this state, its sound is more balanced, and the intermediate frequency and vocal performance are obviously three-dimensional. In the low frequency aspect, SOHO II NC of course chose a more heavy-duty design, this style is good when paired with pop music, low-frequency volume and good strength. A bit of the trend of testing Sennheiser's little girl before.
Due to the influence of the principle of active noise reduction, the resolution of the general active noise canceling headphones is difficult to do, but the mid-high frequency and high-frequency performance of the SOHO II NC should be considered quite good. Compared with the entry-level high-quality in-ear earphones. Although the sound is slightly stiff, the disadvantage is not particularly obvious. Of course, compared with BOSE, because of the BOSE style, the high-frequency details of SOHO II NC are relatively better. The overall resolution should be better than QC20. In style, this Headphones are more suitable for pop music, pop songs, slightly tilted at both ends, low frequency has a more obvious taste. And the mid-range performance is quite full, not too blunt, better than Harman Kardon's own entry-level in-ear earphones.
Overall, the Harman Kardon SOHO II NC active noise reduction level is very good when listening to music, the noise of the city bus is very good. In addition to the above mentioned the shortcomings of the wind noise reduction algorithm during the movement [station does not move, the wind No effect], the overall signal-to-noise ratio is very high, there is no obvious noise floor. Headphone sound quality and sound style are consistent with product positioning and price. But if you want to experience the top noise reduction effect, BOSE QC20 is still far ahead, is Better choice.
Ultrasonic welding pressure
Close fitting, firm resistance to fall
Strong and durable
Priority TPE
It's hard to break even if you stretch multiple times
Stretching or shrinking only one end can easily to damage the components and cause jamming
No winding
Stretch when used, shrink when not used
Five lengths
Each pause is a length, suitable for multiple occasions
Notice
Both cables are stretched at the same time
Do not stretch unilaterally
SOHO II NC uses the in-ear headphones to make the active noise reduction common architectural design. Since the space required for the noise reduction circuit and the power supply battery is not provided by the in-ear earphones [headphones are available], the connection is used. It leads to an external small box. The connection between the SOHO II NC earphone itself and the external box is fixed and dead, and cannot be separated. The external box provides a 3.5mm interface, which can be connected to the mobile phone through the connection cable. , the player and other audio sources connected.
In addition to a 3.5mm interface, the SOHO II NC external box also has a standard Micro USB interface for charging the external box. The official theoretical data can achieve 35 hours after the noise reduction function. There is a switch on the box that can turn the noise reduction function on or off. In the off state, the headphones will sound like sound, but the sound performance is very different. We will talk about it specifically below. The material and lighting effect of this switch is very design. Yes, the frosted translucent switch is light-transparent like a paint finish, quite retro.
SOHO II NC also comes with a one-touch wire control and microphone for mobile phone calls. Single button can pause tracks and answer calls.
Noise reduction effect experience: After the active noise reduction switch of SOHO II NC is turned on, the effect of noise reduction on the sense of hearing can be clearly felt. The signal-to-noise ratio of the SOHO II NC performs well when not playing music, which is better than many entry-level initiatives. Noise-cancelling headphones perform better [noise reduction, amp circuit work has noise floor]. However, the first feeling is that it still does not reach the very obvious sense of tranquility after BOSE QC20 is turned on.
In the use of buses, the low-frequency noise of the engine will still have obvious residual. Considering the performance of different noise pressures SOHO II NC, we speculate that the noise reduction level and BOSE of SOHO II NC under the high-intensity noise of the aircraft Still not at one level. But better than SONY Walkman noise reduction, and have used some entry-mounted noise canceling headphones.
When walking or running, the in-ear headphones will enhance the footsteps of the incoming person because of the stethoscope effect, the noise caused by the wind and the earphone wire and the earphone friction. After the active noise reduction is turned on, the SOHO II NC can be well eliminated. Wire wind noise, even the wire jitter slightly hits the noise brought by the clothes. The footsteps are also significantly weakened.
However, the SOHO II NC noise reduction algorithm seems to have a flaw. In the process of moving with the earphones, even if it is slow, a slight breeze blows, the noise reduction error can be heard in the earphone, and the wind is consistent with the wind rhythm. Whirring. This is of course not heard when you turn on the music, but when you turn off the music and only turn on the noise reduction, you can still hear it clearly. This is obviously not ideal.
Overall, the active noise reduction effect of SOHO II NC is obvious, and the noise reduction level is basically satisfactory. We do not have an objective indicator to explain it. However, in terms of signal-to-noise ratio, it is superior to Sony Walkman M504 active noise reduction level, noise. The elimination is also slightly better than the SONY M504. But what is certain is that the noise reduction level of the BOSE QC20 is completely out of one level. Although the noise reduction effect on the bus and busy roads is already very satisfactory, it will not be like Like the QC20, light and noise reduction is very addictive.
Subjective sense of hearing: Since the active noise reduction is achieved by picking up the noise signal and processing it in real time, by playing the inverse phase signal to cancel the noise, it has a certain loss to the music played by the earphone itself. Therefore, the noise reduction system must not only accurately calculate the noise, but also Compensate for sound reproduction.
Therefore, we can see that the SOHO II NC and other noise-cancelling headphones are connected to the external box, because the noise reduction method is not good, and the sound performance is difficult to predict. Although SOHO II NC It can work when the noise reduction is not turned on, or when the external box is completely dead. You can hear the sound, but from the overall adjustment, the best state of this earphone must be after the noise reduction function is turned on. The sound is more balanced, full, and the overall sound quality is relatively better.
The official SOHO II NC indicator has a sensitivity of 107dB when the noise reduction function is not turned on, and the sensitivity is 115dB when the noise reduction function is turned on. The difference of 8dB is still very large. This is also the case where the noise reduction circuit also functions as a small amp. effect.
We use the iPhone to experience the SOHO II NC. The noise reduction experience mentioned in the previous article, we are specifically to compare its noise reduction effect, without playing the music. In fact, while playing music while turning on noise reduction, SOHO II The NC has clearly eliminated the noise on the bus.
SOHO II NC is equipped with iPhone when the noise reduction function is not turned on. The sound style is relatively light, but unlike BOSE, it retains the high-frequency resolution, and the high frequency is certainly not as dark as BOSE. However, we speculate that it is guaranteed. It has a better effect when the noise reduction is turned on, so the SOHO II NC has a poor intermediate frequency dynamics in the normal state, and it seems that the high frequency is slightly more.
After the noise reduction function is turned on, the overall dynamics of the SOHO II NC will be greatly improved. It seems that the design of many active noise canceling headphones is slightly different. The quality of the SOHO II NC headphones itself has a large margin, and the noise reduction function is not turned on. It is necessary to obviously pull up the high frequency. Instead, the intermediate frequency dynamics are greatly compensated. The middle and high frequency parts are slightly elevated. In this state, its sound is more balanced, and the intermediate frequency and vocal performance are obviously three-dimensional. In the low frequency aspect, SOHO II NC of course chose a more heavy-duty design, this style is good when paired with pop music, low-frequency volume and good strength. A bit of the trend of testing Sennheiser's little girl before.
Due to the influence of the principle of active noise reduction, the resolution of the general active noise canceling headphones is difficult to do, but the mid-high frequency and high-frequency performance of the SOHO II NC should be considered quite good. Compared with the entry-level high-quality in-ear earphones. Although the sound is slightly stiff, the disadvantage is not particularly obvious. Of course, compared with BOSE, because of the BOSE style, the high-frequency details of SOHO II NC are relatively better. The overall resolution should be better than QC20. In style, this Headphones are more suitable for pop music, pop songs, slightly tilted at both ends, low frequency has a more obvious taste. And the mid-range performance is quite full, not too blunt, better than Harman Kardon's own entry-level in-ear earphones.
Overall, the Harman Kardon SOHO II NC active noise reduction level is very good when listening to music, the noise of the city bus is very good. In addition to the above mentioned the shortcomings of the wind noise reduction algorithm during the movement [station does not move, the wind No effect], the overall signal-to-noise ratio is very high, there is no obvious noise floor. Headphone sound quality and sound style are consistent with product positioning and price. But if you want to experience the top noise reduction effect, BOSE QC20 is still far ahead, is Better choice.
Strong and durable
Aluminum alloy plug, TPE cover
Hidden design
One second stretch, free storageUltrasonic welding pressure
Close fitting, firm resistance to fall
Strong and durable
Priority TPE
It's hard to break even if you stretch multiple times
Stretching or shrinking only one end can easily to damage the components and cause jamming
No winding
Stretch when used, shrink when not used
Five lengths
Each pause is a length, suitable for multiple occasions
Notice
Both cables are stretched at the same time
Do not stretch unilaterally
Data Cable Wiring,Original Data Cable,Computer Transfer Cable,Line Data Charging Cable
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