Nowadays, the singing function of karaoke is generally the first priority of private room acoustics. Although there are also some Hi room stereos (professional big boxes with edge bass to increase power to drive horn tweeters), they should also be able to sing Hi.
For high-grade private rooms, speakers must be clean in sound quality, bright and clear in hearing, rich in details, soft and elastic. Because the space in the private room is relatively small and the seats are close to the speakers, if the sound quality of the speakers is rough, it will be harsh, making it impossible for people to sit in the room for a long time, and it will be very difficult to talk and communicate.
As far as dual-frequency KTV speakers with rubber-rimmed bass and paper cone treble are concerned, 8-inch and 6-and-a-half-inch speakers have relatively good singing skills, and such caliber speakers have relatively sufficient intermediate frequency energy to highlight human voices, but the 8-inch and 6-and-a-half-inch speakers with single bass have lower power and can only meet the needs of small rooms.
If the room space is large and the music bass is not deep enough, you can add ultra-low speakers. However, the sound (microphone sound) is best not to enter the ultra-low speaker, because the ultra-low sound will amplify the sound more abundantly, but it lacks the mellow and bright sense of reality, becomes unclear and has no penetrating power, and makes people feel breathless when singing. In addition, if human voice (microphone sound) enters the subwoofer, the low frequency may also howl (commonly known as flying microphone), and the low frequency howling may make the bass unit "retire" in advance.
If it is a three-band KTV speaker or a professional speaker, the singing skills of 8-inch, 10-inch and 12-inch are good, while the professional speaker has good transient performance and crisp rhythm, but the sound perception is hard, the tweeter has strong directivity and relatively narrow coverage, which is easy to cause howling in private rooms with strong reflection, so it is usually only suitable for large rooms, and generally requires ultra-low speakers to make up for the lack of elasticity and flexibility.
As far as sound is concerned, the sound of pure karaoke bars first pursues bright, clear and natural timbre, because the timbre of speakers is bright, clear and natural, and singing can be relaxed and comfortable. Most people are not professional singers, and their voices are average and neutral, so it is very important to sing easily-only when people can hear their voices more clearly and loudly without much effort will they be satisfied, their emotions will be high, and their desire to sing and express will be stronger.
In addition, bright and clear timbre is of great significance to KTV speakers, because bright and clear audio-visual images are positioned in front, which makes people feel warm, cordial and excited. Bright and clear timbre is also of great significance to Hi room. According to hearsay, bright, clear and natural timbre will make some guests "see" wonderful things, while dim timbre will make people "see" or think of ugly and horrible scenes and things, which will make people unhappy and even make mistakes.