First of all, Sony
As a representative brand of music equipment, Sony's music mobile phone, Sony record company and so on are all famous in Gensonnie, and Sony mini speakers have great influence among peers.
Second, innovation.
Innovative creativity is the world's leading multimedia and entertainment brand, and it is a product originating from Singapore. Innovation China Company has also developed very well in China, and has a wide influence in the market.
Third, the rambler
The brand name of rambler is quite poetic. Founded in 1996, rambler is the first professional multimedia equipment manufacturer in China and the second largest in the world. Headquartered in Dongguan, Guangdong, China, rambler has great consumption potential in the domestic market.
Fourth, Longines
Only a standard USB cable is needed to realize the functions of charging, card reader and USB external speaker. The complicated steps are omitted, and the use is more convenient. In addition, the timed shutdown function can also make you fall asleep while listening to music, so you don't have to worry about forgetting to turn off your mobile phone after falling asleep.
Verb (abbreviation for verb) Philips
Special speakers and woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox woox. Xwoox woox woox woox woox double delay and fully symmetrical sandwich structure produce accurate bass without obvious distortion. Woox uses the full capacity of the speaker to really amplify the music effect and produce an unusually deep dynamic bass.
Precautions for purchasing speakers:
1, frequency response, the hearing range of ordinary people's ears is the sound with the frequency of 25Hz-20KHz. Therefore, the frequency of the speaker should reach at least 45Hz-20KHz to ensure the effective hearing range of the human ears is basically covered. Generally speaking, the frequency response of multimedia computer speakers can basically meet the requirements in the range of 40Hz-20KHz.
2. Harmonic distortion, which refers to the sound playback distortion caused by the resonance phenomenon generated by the loudspeaker, should be as small as possible.
3, sensitivity, the higher the index value, the better the performance, the spirit of ordinary speakers per degree is generally 70dB-80dB.
4 output power, including nominal power (continuous output power) and peak power (maximum output power). Nominal power refers to the maximum output power of the speaker when the harmonic distortion of the speaker changes within the standard range; Peak power refers to the maximum instantaneous power of the speaker under the condition of no overload. Pay attention to label 5 when purchasing. Appearance selection, and poor quality speakers are also poor in appearance and workmanship. Therefore, it is necessary to carefully observe whether there are bubbles and cracks on the surface of the box and whether the switch is convenient to operate. ?
5, from the speaker effect to choose, this is the key, focusing on "listening". The specific listening method is to listen to the current sound first. At this time, unplug the audio input line and turn the volume to the maximum. The human ear should not hear the noise about 20 cm away from the speaker, or the noise is very weak. Then play the music you are familiar with and listen carefully. The bass should be heavy but not muddy, the treble should be bright but not sharp, and the alto should be mellow. Don't be too loud at this time. Loud volume does not mean good sound quality, so don't be misled by business operations.