Anti magnetic:The magnetic field of the speaker can seriously interfere with the screens of televisions and computer monitors,causing screen distortion and large color distortion,which is called"magnetization".To avoid damage to the monitor caused by non magnetic speakers,it is required that the speakers should have anti magnetic effects,even if they are tightly attached to the TV and monitor,they will not interfere with the screen.The simple method is to use"anti magnetic"speakers.Usually,the price of anti magnetic speakers is much higher than that of regular speakers.
　　·Full band speaker:This is a dedicated surround speaker for multimedia active speakers,as X.1 channels simplify discrete speakers(requiring two speakers to split)into full band speakers to reduce costs,and can basically represent the entire range of sound.A well made full band speaker is better than a cheap coaxial speaker.But to be honest,it is difficult for speakers to fully cover the audible frequency range of the human ear,and multiple speakers need to jointly bear the sound reproduction of the entire range.And to solve this problem through a frequency division circuit,it is better to use an active speaker with dual frequency division high and low bass design for playback.
　　·Flat panel speaker:The speaker design of flat panel speakers has become very popular recently.It is probably because people have come to appreciate its beautiful and compact design,and it can also be embedded in photos.It's very cool!The advantage of a flat panel speaker is that it has good uniformity and directionality of sound,but due to structural limitations,the sound range is narrow and cannot express low-frequency sound.Therefore,it is generally used with a subwoofer.It is recommended that friends who have high requirements for sound do not choose flat speakers.
　　·USB speaker:It is a speaker that directly inputs digital audio signals from the USB port on the motherboard into the speaker,and then processes the signals through the built-in D/A conversion circuit of the speaker before outputting them.On the surface,the advantage of using a USB speaker is that it can improve sound quality because digital signals are not interfered with during transmission and have good signal purity.However,the core of a USB speaker is the D/A conversion circuit,which has a significant impact on the performance of the speaker.Currently,there are two popular D/A conversion circuits in the market,namely 16bit and 20bit,with the latter being the better,This data is much worse than the fever level amplifier(because it is impossible to use expensive modules).The disadvantage of a USB speaker is its high CPU usage,and the old motherboard also does not support USB.You can purchase a USB speaker without purchasing a sound card,but this will not enable hardware to complete functions such as EAX and hard wave meters.Foreign famous brand HiFi boxes do not have USB design,so friends who have high requirements for sound quality do not need to consider USB speakers.