The difference between multimedia audio and home audio

First of all, you need to understand the difference between passive speakers and active speakers.
Active Speakers are also known as "active speakers." Usually refers to speakers with power amplifiers, such as multimedia computer speakers, active ultra-low speakers, and some new home theater active speakers. Since the active speaker has a built-in power amplifier circuit, the user does not have to consider the problem of matching with the amplifier, and it is also convenient to drive directly with a lower level audio signal.
In addition, some professional recording monitors with built-in amplifier circuits and electronic crossover speakers with built-in electronic crossover circuits and amplifiers can also be classified as active speakers.
Passive Speakers are also known as Passive Speakers. Passive speakers are the common speakers that we usually use without internal amplifier circuits. Passive speakers do not have amplifiers, but often have a crossover network and impedance compensation circuits.
Active speakers usually include parameters such as the output power of the built-in amplifier, input impedance, and input signal level. Active subwoofers also specify the frequency characteristics of the input signal (such as full-band signals or low-frequency signals), low-pass filter characteristics and other parameters. Passive speakers are generally labeled with impedance, power, frequency range, etc.
Then talk about the difference between the power amplifier material and the multimedia audio of the home audio:
1. Multimedia audio generally refers to "active speakers". That is, the power amplifier and the main box, directly push the speaker sound; home audio is generally the use of "external power amplifier + passive speaker" combination!
Second, home audio power is generally larger! Generally 50W * 2 (8 ohms, RMS) or more; multimedia audio power is small. Like standard 2.0 speakers can do 40w * 2 (8 ohms, RMS) is not much!
3. In terms of materials. Household amplifiers generally use "transistors" or (field effect transistors) after the stage. The power of this amplifier can easily achieve more than 100W per channel. The famous amplifier stage "amplifier tube" is mainly used. Toshiba "or" three Ken. Tube. Transistor is characterized by high power, strong low frequency; good sense of speed, magnificent! And both warm and sweet sound. For example, Japan's Toshiba tube, on behalf of A1943/C5200; A1301/ C3280, A1962/C5242, etc. In the home HIFI power amplifier, basically adopt a perfect relay protection circuit, using overcurrent, overvoltage sampling, through the specially designed protection circuit, to protect against overcurrent, overvoltage and short circuit. Effectively protects the speaker and the amplifier itself. Some also control the thermistor to protect against overheating.
The multimedia audio is generally used successfully. The characteristics of this amplifier are: the circuit is very simple. It is especially suitable for the narrow space of the multimedia box. The disadvantage is: the sense of hearing is worse than that of the crystal machine and the amplifier. The metal taste is heavier. The human taste is less. Moreover, the power is not easy to do. In recent years, IC amplifiers have also appeared in boutiques, such as LM1875T, LM1876 (4766), LM3886, TDA7294, TDA7293, etc. of the country. The best indicator is "Italian "The company's TDA7293. can be done at around 100W. Some sets have been successfully placed inside and have quite perfect protection functions. Such as boot mute delay, short circuit, overheating, overcurrent protection, etc. In the above chip, the protection function of LM1876 is perfect. Very representative.
4. Speaker unit and crossover. Household audio generally uses 5吋-----12吋 woofer unit. Most of them have designed a more professional two-stage crossover to obtain very good sound effects. Multimedia standard 2.0 The use of 3---5 unit. The quality of the crossover is also mostly not as good as home HIFI.
V. The difference between the gains. When the multimedia manufacturers design multimedia audio, the main consideration is the matching with the Sound Card. The computer sound card itself has a built-in low-power amplifier, and the output drive voltage is relatively large! The rambler series of multimedia speakers is no exception; it is mainly designed for the output voltage amplitude of the "sound card". The output voltage of the sound card is large. If the driving voltage of the input power amplifier chip is designed too large, it is easy to cause "saturation distortion", that is, there will be "popping" when the volume is turned up!
DVD and CD players, and MP3, and CD Walkman output voltage is small; (factory in production is focused on the sound card, relatively "ignoring" with other sources); so with DVD, even if The volume button is adjusted to the maximum and the sound is still very small! (The 1900T3 is an obvious example.) The reason is that the driving voltage supplied to the T3 amplifier chip is too small! In fact, the power of T3 is difficult to reach the nominal power at this time! (In this regard, Huiwei is a special case. The gains of products such as T200A and S200A are relatively large. It may be that Huiwei is adhering to some home audio practices.)
It is necessary to ensure that there is no “popping” when pairing with the sound card; and that there is enough power output when pairing with the DVD; what should I do? This is a contradiction in itself! After all, there are a lot of users who use multimedia audio with DVDs, and they are expanding!
Design dual line machine (suitable for sound card and CD/DVD player); multimedia audio "home" is a problem that manufacturers must seriously consider!
In fact, with the HIFI manufacturers joining the multimedia audio industry. More and more home HIFI audio practices are used in multimedia audio. Like the discrete components of the dew, the Edifier S2000 external amplifier + passive speakers, send Friends of the passive box (suitable with a variety of external amplifiers) and so on are quite distinctive.
As far as the current situation is concerned, multimedia audio is a multimedia audio, and it is impossible to completely replace the traditional home HIFI audio--------but the home HIFI audio characteristics exhibited by multimedia audio are the future development trend.
First, you need to understand The difference between passive speakers and active speakers.
Active Speakers are also known as "active speakers." Usually refers to speakers with power amplifiers, such as multimedia computer speakers, active ultra-low speakers, and some new home theater active speakers. Since the active speaker has a built-in power amplifier circuit, the user does not have to consider the problem of matching with the amplifier, and it is also convenient to drive directly with a lower level audio signal.
In addition, some professional recording monitors with built-in amplifier circuits and electronic crossover speakers with built-in electronic crossover circuits and amplifiers can also be classified as active speakers.
Passive Speakers are also known as Passive Speakers. Passive speakers are the common speakers that we usually use without internal amplifier circuits. Passive speakers do not have amplifiers, but often have a crossover network and impedance compensation circuits.
Active speakers usually include parameters such as the output power of the built-in amplifier, input impedance, and input signal level. Active subwoofers also specify the frequency characteristics of the input signal (such as full-band signals or low-frequency signals), low-pass filter characteristics and other parameters. Passive speakers are generally labeled with impedance, power, frequency range, etc.
Then talk about the difference between the power amplifier material and the multimedia audio of the home audio:
1. Multimedia audio generally refers to "active speakers". That is, the power amplifier and the main box, directly push the speaker sound; home audio is generally the use of "external power amplifier + passive speaker" combination!
Second, home audio power is generally larger! Generally 50W * 2 (8 ohms, RMS) or more; multimedia audio power is small. Like standard 2.0 speakers can do 40w * 2 (8 ohms, RMS) is not much!
3. In terms of materials. Household amplifiers generally use "transistors" or (field effect transistors) after the stage. The power of this amplifier can easily achieve more than 100W per channel. The famous amplifier stage "amplifier tube" is mainly used. Toshiba "or" three Ken. Tube. Transistor is characterized by high power, strong low frequency; good sense of speed, magnificent! And both warm and sweet sound. For example, Japan's Toshiba tube, on behalf of A1943/C5200; A1301/ C3280, A1962/C5242, etc. In the home HIFI power amplifier, basically adopt a perfect relay protection circuit, using overcurrent, overvoltage sampling, through the specially designed protection circuit, to protect against overcurrent, overvoltage and short circuit. Effectively protects the speaker and the amplifier itself. Some also control the thermistor to protect against overheating.
The multimedia audio is generally used successfully. The characteristics of this amplifier are: the circuit is very simple. It is especially suitable for the narrow space of the multimedia box. The disadvantage is: the sense of hearing is worse than that of the crystal machine and the amplifier. The metal taste is heavier. The human taste is less. Moreover, the power is not easy to do. In recent years, IC amplifiers have also appeared in boutiques, such as LM1875T, LM1876 (4766), LM3886, TDA7294, TDA7293, etc. of the country. The best indicator is "Italian "The company's TDA7293. can be done at around 100W. Some sets have been successfully placed inside and have quite perfect protection functions. Such as boot mute delay, short circuit, overheating, overcurrent protection, etc. In the above chip, the protection function of LM1876 is perfect. Very representative.
4. Speaker unit and crossover. Household audio generally uses 5吋-----12吋 woofer unit. Most of them have designed a more professional two-stage crossover to obtain very good sound effects. Multimedia standard 2.0 The use of 3---5 unit. The quality of the crossover is also mostly not as good as home HIFI.
V. The difference between the gains. When the multimedia manufacturers design multimedia audio, the main consideration is the matching with the sound card. The computer sound card itself has a built-in low-power amplifier, and the output drive voltage is relatively large! The rambler series of multimedia speakers is no exception; it is mainly designed for the output voltage amplitude of the "sound card". The output voltage of the sound card is large. If the driving voltage of the input power amplifier chip is designed too large, it is easy to cause "saturation distortion", that is, there will be "popping" when the volume is turned up!
DVD and CD players, and MP3, and CD Walkman output voltage is small; (factory in production is focused on the sound card, relatively "ignoring" with other sources); so with DVD, even if The volume button is adjusted to the maximum and the sound is still very small! (The 1900T3 is an obvious example.) The reason is that the driving voltage supplied to the T3 amplifier chip is too small! In fact, the power of T3 is difficult to reach the nominal power at this time! (In this regard, Huiwei is a special case. The gains of products such as T200A and S200A are relatively large. It may be that Huiwei is adhering to some home audio practices.)
It is necessary to ensure that there is no “popping” when pairing with the sound card; and that there is enough power output when pairing with the DVD; what should I do? This is a contradiction in itself! After all, there are a lot of users who use multimedia audio with DVDs, and they are expanding!
Design dual line machine (suitable for sound card and CD/DVD player); multimedia audio "home" is a problem that manufacturers must seriously consider!
In fact, with the HIFI manufacturers joining the multimedia audio industry. More and more home HIFI audio practices are used in multimedia audio. Like the discrete components of the dew, the Edifier S2000 external amplifier + passive speakers, send Friends of the passive box (suitable with a variety of external amplifiers) and so on are quite distinctive.
As far as the current situation is concerned, multimedia audio is a multimedia audio, and it is impossible to completely replace the traditional home HIFI audio--------but the home HIFI audio characteristics exhibited by multimedia audio are the future development trend.
First, you need to understand The difference between passive speakers and active speakers.
Active Speakers are also known as "active speakers." Usually refers to speakers with power amplifiers, such as multimedia computer speakers, active ultra-low speakers, and some new home theater active speakers. Since the active speaker has a built-in power amplifier circuit, the user does not have to consider the problem of matching with the amplifier, and it is also convenient to drive directly with a lower level audio signal.
In addition, some professional recording monitors with built-in amplifier circuits and electronic crossover speakers with built-in electronic crossover circuits and amplifiers can also be classified as active speakers.
Passive Speakers are also known as Passive Speakers. Passive speakers are the common speakers that we usually use without internal amplifier circuits. Passive speakers do not have amplifiers, but often have a crossover network and impedance compensation circuits.
Active speakers usually include parameters such as the output power of the built-in amplifier, input impedance, and input signal level. Active subwoofers also specify the frequency characteristics of the input signal (such as full-band signals or low-frequency signals), low-pass filter characteristics and other parameters. Passive speakers are generally labeled with impedance, power, frequency range, etc.
Then talk about the difference between the power amplifier material and the multimedia audio of the home audio:
1. Multimedia audio generally refers to "active speakers". That is, the power amplifier and the main box, directly push the speaker sound; home audio is generally the use of "external power amplifier + passive speaker" combination!
Second, home audio power is generally larger! Generally 50W * 2 (8 ohms, RMS) or more; multimedia audio power is small. Like standard 2.0 speakers can do 40w * 2 (8 ohms, RMS) is not much!
3. In terms of materials. Household amplifiers generally use "transistors" or (field effect transistors) after the stage. The power of this amplifier can easily achieve more than 100W per channel. The famous amplifier stage "amplifier tube" is mainly used. Toshiba "or" three Ken. Tube. Transistor is characterized by high power, strong low frequency; good sense of speed, magnificent! And both warm and sweet sound. For example, Japan's Toshiba tube, on behalf of A1943/C5200; A1301/ C3280, A1962/C5242, etc. In the home HIFI power amplifier, basically adopt a perfect relay protection circuit, using overcurrent, overvoltage sampling, through the specially designed protection circuit, to protect against overcurrent, overvoltage and short circuit. Effectively protects the speaker and the amplifier itself. Some also control the thermistor to protect against overheating.
The multimedia audio is generally used successfully. The characteristics of this amplifier are: the circuit is very simple. It is especially suitable for the narrow space of the multimedia box. The disadvantage is: the sense of hearing is worse than that of the crystal machine and the amplifier. The metal taste is heavier. The human taste is less. Moreover, the power is not easy to do. In recent years, IC amplifiers have also appeared in boutiques, such as LM1875T, LM1876 (4766), LM3886, TDA7294, TDA7293, etc. of the country. The best indicator is "Italian "The company's TDA7293. can be done at around 100W. Some sets have been successfully placed inside and have quite perfect protection functions. Such as boot mute delay, short circuit, overheating, overcurrent protection, etc. In the above chip, the protection function of LM1876 is perfect. Very representative.
4. Speaker unit and crossover. Household audio generally uses 5吋-----12吋 woofer unit. Most of them have designed a more professional two-stage crossover to obtain very good sound effects. Multimedia standard 2.0 The use of 3---5 unit. The quality of the crossover is also mostly not as good as home HIFI.
V. The difference between the gains. When the multimedia manufacturers design multimedia audio, the main consideration is the matching with the sound card. The computer sound card itself has a built-in low-power amplifier, and the output drive voltage is relatively large! The rambler series of multimedia speakers is no exception; it is mainly designed for the output voltage amplitude of the "sound card". The output voltage of the sound card is large. If the driving voltage of the input power amplifier chip is designed too large, it is easy to cause "saturation distortion", that is, there will be "popping" when the volume is turned up!
DVD and CD players, and MP3, and CD Walkman output voltage is small; (factory in production is focused on the sound card, relatively "ignoring" with other sources); so with DVD, even if The volume button is adjusted to the maximum and the sound is still very small! (The 1900T3 is an obvious example.) The reason is that the driving voltage supplied to the T3 amplifier chip is too small! In fact, the power of T3 is difficult to reach the nominal power at this time! (In this regard, Huiwei is a special case. The gains of products such as T200A and S200A are relatively large. It may be that Huiwei is adhering to some home audio practices.)
It is necessary to ensure that there is no “popping” when pairing with the sound card; and that there is enough power output when pairing with the DVD; what should I do? This is a contradiction in itself! After all, there are a lot of users who use multimedia audio with DVDs, and they are expanding!
Design dual line machine (suitable for sound card and CD/DVD player); multimedia audio "home" is a problem that manufacturers must seriously consider!
In fact, with the HIFI manufacturers joining the multimedia audio industry. More and more home HIFI audio practices are used in multimedia audio. Like the discrete components of the dew, the Edifier S2000 external amplifier + passive speakers, send Friends of the passive box (suitable with a variety of external amplifiers) and so on are quite distinctive.
For the moment, multimedia audio is multimedia audio, it is impossible to completely replace the traditional home HIFI audio --- but the multimedia HIFI audio characteristics of the multimedia audio is the future development trend.

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