KTV speakers and amplifiers are different from homes and shows. Although they are all sound systems, in the KTV box, different sound systems are required.
Amplifier:
The KTV amplifier is divided into a combined karaoke amplifier and a separate combination of front and rear stages, which are divided into traditional ECHO and DSP according to the type of microphone effect. In fact, the traditional ECHO is also an early DSP processor, limited to the technical requirements and cost control at that time, the performance is not high, and the application range is greatly limited. The early design of the combined karaoke amplifier power is generally small, the supporting speakers are high-sensitivity low-power speakers, the most prone problem is the feedback whistle (flying cockroach), because the power reserve at high volume work Insufficient, causing severe signal distortion, coupled with high-sensitivity speaker distortion feedback, the distortion is cyclically amplified, resulting in feedback whistling (flying). In principle, the main incentive for whistling (flying cockroaches) is distortion. Reducing distortion can reduce the chance of whistling (flying cockroaches), but it cannot be said that whistling (flying cockroaches) will not be returned. It is said that within the available gain range, when the gain is large enough, it will also cause a feedback whistle (flying cockroach). In other words, KTV's karaoke amplifier should try to choose high power. However, the greater the power of the amplifier, the harder the tone feels, and the actual experience can be selected within 8Ω300W per channel. Choosing the combination of amplifier and speaker is very important. The impedance, sensitivity and power of the speaker will affect the choice of the amplifier. The general principle is that the speaker with high sensitivity is correspondingly smaller, the power of the amplifier is twice that of the speaker, and the speaker with low sensitivity is low. The power is correspondingly larger, and the power of the power amplifier is 2.5 to 3 times that of the speaker. This configuration is relatively stable. The timbre of the amp is the most difficult to identify, not the words can be expressed. This is also the most difficult part, and it is also the reason that many manufacturers can survive. It is difficult for the audio world to have an absolute king, all in personal understanding and choice. A room of less than 18 square meters is basically a well-designed traditional ECHO effect karaoke amplifier. However, due to business management needs, when you treat the sound effect as a product, the traditional ECHO will cause uncertainty in the sound effect. Each guest's effect debugging requirements may make the manager never be able to determine the effect in a unified Location will also make the DJ exhausted. The second reason to use a DSP processor power amplifier is that the traditional ECHO effect processing chip has a narrow frequency response range (less than 8KHz), and the sampling frequency is low. It is turbid and weak in an environment requiring high power output, and cannot be far away. Not enough penetration. The DSP's sampling frequency of up to 48K and the wide frequency range of 20Hz to 23KHz bring clearer sound quality and better mid-high frequency penetration. The third reason to use a DSP processor amplifier is that the DSP effects processor can store multiple effects data, and bring a truly usable Reverb-"reverb" effect, giving consumers more experience in singing K, realizing Consumer self-service K songs also greatly reduce the service requirements of DJ, plus the automatic initialization function of the VOD system, the sound effect of the private room can also reach a consistent level. To be fair, if you simply evaluate the sound in a private room below 18 square meters, a well-designed traditional ECHO effect is not lost to the DSP effect, but it is rather soft and supple. The DSP is a bit too strong and not soft enough. The comparison between the LPF of the DSP and the 8Khz is more obvious, mainly in the low-frequency thickness part. The combination of the combined karaoke amplifier and the front-to-back split matching mainly depends on the actual demand of the application room type. The room type within 18 square meters is recommended to select the DSP combined karaoke amplifier of about 200W; the room type of 18 square meters or more to 25 square meters can choose three. Channel 200W DSP Karaoke amplifier to increase the center speaker for the middle and high-pitched vocal fill; for rooms over 25 square meters, it is necessary to consider the use of the front and rear splits, according to the actual shape of the room, the main consideration is the sound pressure level. , sound field uniformity, reverberation sound field establishment and other factors, the main speaker's rear stage power amplifier with the characteristics of the speaker to select the appropriate power, auxiliary small power speakers can use multi-channel low-power post-stage power amplifier to reduce costs.
Speaker:
The selection of KTV room speakers is divided into main speakers and auxiliary speakers. The main evaluation of the room speakers is that the performance of the vocals should be outstanding, and the sound phase should be right. (Listen to see if the vocals can be sent out, and some speakers will feel The vocals are behind the box. The music frequency is wide and dynamic enough. You may wish to find a pair to compare and choose. The closest one is not wrong. The choice of private room speakers should be decided according to the consumption pattern of the target consumer group. The karaoke consumer consumption concept in big cities is relatively mature, and the entertainment venues are classified finely. Basically, K and HI can be considered or less. Compatible, look at the investor's market positioning, pure K's main consideration of vocal expressiveness, 8" woofer speaker's vocal performance is best, 10" woofer speaker music will be much better, vocals are slightly worse.
The mass entertainment market in the second and third-tier cities started late, and the consumer's karaoke consumption concept was vague. Basically, KTV is a place to relax. You need to sing and need DISCO, and some still need HI. The situation varies from place to place. For this kind of compatible demand, the 10" woofer speaker is the main one, it is best to use low sensitivity, so the design can withstand the test. The large room over 45 square meters, generally need to use the speaker of 12" or more woofer, so The performance price is relatively high. Of course, many pairs of 8" or 10" speakers plus auxiliary low-frequency speakers can be installed. Each has its own characteristics, mainly depending on investment and target requirements. Many pairs of 8" or 10" speakers express the effect, the vocals will be softer, the music surrounds better, but the sound pressure level is not enough, the dynamic is not enough, it is acceptable for the pure K design. 12" or 15" speakers are generally horn treble, sound pressure level is large, range is long, dynamic is also big, the disadvantage is that the vocals are tough, of course, the 12" or 15" speakers specially designed for KTV will also have a good performance. The use of 12" or 15" speakers as the main speakers usually need to be equipped with auxiliary speakers, auxiliary speakers should not exceed 8", it is best to increase the crossover line to match the main speaker sound.
KTV private room microphone selection method is one of the best in the public, if possible, more microphones are available. Different sizes and styles of the private room will use different types of microphones. As mentioned above, it is best to use KTV professional design. Microphone. The audition is to find male and female singers of all ages to test the evaluation. For different speaker amplifiers, there will be different microphones, mainly based on field testing.
Amplifier:
The KTV amplifier is divided into a combined karaoke amplifier and a separate combination of front and rear stages, which are divided into traditional ECHO and DSP according to the type of microphone effect. In fact, the traditional ECHO is also an early DSP processor, limited to the technical requirements and cost control at that time, the performance is not high, and the application range is greatly limited. The early design of the combined karaoke amplifier power is generally small, the supporting speakers are high-sensitivity low-power speakers, the most prone problem is the feedback whistle (flying cockroach), because the power reserve at high volume work Insufficient, causing severe signal distortion, coupled with high-sensitivity speaker distortion feedback, the distortion is cyclically amplified, resulting in feedback whistling (flying). In principle, the main incentive for whistling (flying cockroaches) is distortion. Reducing distortion can reduce the chance of whistling (flying cockroaches), but it cannot be said that whistling (flying cockroaches) will not be returned. It is said that within the available gain range, when the gain is large enough, it will also cause a feedback whistle (flying cockroach). In other words, KTV's karaoke amplifier should try to choose high power. However, the greater the power of the amplifier, the harder the tone feels, and the actual experience can be selected within 8Ω300W per channel. Choosing the combination of amplifier and speaker is very important. The impedance, sensitivity and power of the speaker will affect the choice of the amplifier. The general principle is that the speaker with high sensitivity is correspondingly smaller, the power of the amplifier is twice that of the speaker, and the speaker with low sensitivity is low. The power is correspondingly larger, and the power of the power amplifier is 2.5 to 3 times that of the speaker. This configuration is relatively stable. The timbre of the amp is the most difficult to identify, not the words can be expressed. This is also the most difficult part, and it is also the reason that many manufacturers can survive. It is difficult for the audio world to have an absolute king, all in personal understanding and choice. A room of less than 18 square meters is basically a well-designed traditional ECHO effect karaoke amplifier. However, due to business management needs, when you treat the sound effect as a product, the traditional ECHO will cause uncertainty in the sound effect. Each guest's effect debugging requirements may make the manager never be able to determine the effect in a unified Location will also make the DJ exhausted. The second reason to use a DSP processor power amplifier is that the traditional ECHO effect processing chip has a narrow frequency response range (less than 8KHz), and the sampling frequency is low. It is turbid and weak in an environment requiring high power output, and cannot be far away. Not enough penetration. The DSP's sampling frequency of up to 48K and the wide frequency range of 20Hz to 23KHz bring clearer sound quality and better mid-high frequency penetration. The third reason to use a DSP processor amplifier is that the DSP effects processor can store multiple effects data, and bring a truly usable Reverb-"reverb" effect, giving consumers more experience in singing K, realizing Consumer self-service K songs also greatly reduce the service requirements of DJ, plus the automatic initialization function of the VOD system, the sound effect of the private room can also reach a consistent level. To be fair, if you simply evaluate the sound in a private room below 18 square meters, a well-designed traditional ECHO effect is not lost to the DSP effect, but it is rather soft and supple. The DSP is a bit too strong and not soft enough. The comparison between the LPF of the DSP and the 8Khz is more obvious, mainly in the low-frequency thickness part. The combination of the combined karaoke amplifier and the front-to-back split matching mainly depends on the actual demand of the application room type. The room type within 18 square meters is recommended to select the DSP combined karaoke amplifier of about 200W; the room type of 18 square meters or more to 25 square meters can choose three. Channel 200W DSP Karaoke amplifier to increase the center speaker for the middle and high-pitched vocal fill; for rooms over 25 square meters, it is necessary to consider the use of the front and rear splits, according to the actual shape of the room, the main consideration is the sound pressure level. , sound field uniformity, reverberation sound field establishment and other factors, the main speaker's rear stage power amplifier with the characteristics of the speaker to select the appropriate power, auxiliary small power speakers can use multi-channel low-power post-stage power amplifier to reduce costs.
Speaker:
The selection of KTV room speakers is divided into main speakers and auxiliary speakers. The main evaluation of the room speakers is that the performance of the vocals should be outstanding, and the sound phase should be right. (Listen to see if the vocals can be sent out, and some speakers will feel The vocals are behind the box. The music frequency is wide and dynamic enough. You may wish to find a pair to compare and choose. The closest one is not wrong. The choice of private room speakers should be decided according to the consumption pattern of the target consumer group. The karaoke consumer consumption concept in big cities is relatively mature, and the entertainment venues are classified finely. Basically, K and HI can be considered or less. Compatible, look at the investor's market positioning, pure K's main consideration of vocal expressiveness, 8" woofer speaker's vocal performance is best, 10" woofer speaker music will be much better, vocals are slightly worse.
The mass entertainment market in the second and third-tier cities started late, and the consumer's karaoke consumption concept was vague. Basically, KTV is a place to relax. You need to sing and need DISCO, and some still need HI. The situation varies from place to place. For this kind of compatible demand, the 10" woofer speaker is the main one, it is best to use low sensitivity, so the design can withstand the test. The large room over 45 square meters, generally need to use the speaker of 12" or more woofer, so The performance price is relatively high. Of course, many pairs of 8" or 10" speakers plus auxiliary low-frequency speakers can be installed. Each has its own characteristics, mainly depending on investment and target requirements. Many pairs of 8" or 10" speakers express the effect, the vocals will be softer, the music surrounds better, but the sound pressure level is not enough, the dynamic is not enough, it is acceptable for the pure K design. 12" or 15" speakers are generally horn treble, sound pressure level is large, range is long, dynamic is also big, the disadvantage is that the vocals are tough, of course, the 12" or 15" speakers specially designed for KTV will also have a good performance. The use of 12" or 15" speakers as the main speakers usually need to be equipped with auxiliary speakers, auxiliary speakers should not exceed 8", it is best to increase the crossover line to match the main speaker sound.
KTV private room microphone selection method is one of the best in the public, if possible, more microphones are available. Different sizes and styles of the private room will use different types of microphones. As mentioned above, it is best to use KTV professional design. Microphone. The audition is to find male and female singers of all ages to test the evaluation. For different speaker amplifiers, there will be different microphones, mainly based on field testing.
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