2, outdoor audio, speaker size should be not less than 5 inches. At present, the larger the horn size, the larger the frequency response range and the better the sound quality. At present, the size of most outdoor speakers is 6~ 12 inch. The quality of the speaker is good, and 8 inches can produce 12 inch timbre. There are also 15 inch speakers, but the larger the speaker size, the louder the volume, and the more inconvenient it is to carry out. So we can't blindly pursue the big horn.
3. Function options: The function of sound is a topic of concern. Then let's line up according to the importance of the functions needed to play saxophone, for reference: 1) The basic functions of sound (there are all sounds)
4. Adjustment of master volume and microphone volume. Reverberation size adjustment. Tone adjustment (tone change) 2) Audio input and tone adjustment U disk (or TF card) input, Bluetooth, wireless (or wired) microphone input, line (wired audio input) and audio can all select audio input through the "function" item.
5, microphone high, medium and low adjustment (equivalent to the function of effector or sound card, but the effect is not obvious), and some audio, specially equipped with equalizer (that is, effector) to adjust the timbre. 3) Music selection function This function is very important, because it is usually very troublesome to put dozens or even hundreds of accompaniment songs on the USB flash drive. Therefore, it is suggested to select music selection and on-demand functions that can be controlled by numeric keys or wireless remote controllers. In this way, it is very convenient to select and play the songs you want to play according to the "U disk song catalog". 4) Some backup singers have designed this function, which is also a good function for friends who play saxophone, especially if they are not familiar with the music. At first, they will play (demonstrate) with the original singer. After they are familiar with it, they can switch this function to reduce the volume of the original song, but the accompaniment volume will become a bit "main melody", but sometimes this function is
6. Choice of microphone: Many stereos already have microphones (mostly for singing), so it is not convenient to play saxophone. You can choose a wireless microphone dedicated to saxophone or a universal microphone. Pay attention to its pickup sensitivity. If the sensitivity is too high, it is easy to howl, and if the sensitivity is too low, the pickup effect is poor. Therefore, it is necessary to choose a microphone with good pickup effect about 5~ 10 cm away from the saxophone speaker (some stereos already have a small wireless microphone, some are easy to use, and some are not easy to use, which has nothing to do with the quality of the stereo itself).