Luohe where the the outdoor stereo monopoly wholesale Henan Jiaming Yang www.69139139.com 1503 +71780 +75 1399 +229 +631 Unit 2, Building 208, Cheng * City Market Milan sun from a pragmatic point of view, regardless of the brand or non-brand, the sound quality of the product is the key, the sound card is bought listen. Purchase should carefully listen to the playback sound quality, and screening the sound quality differences between different products. In general, the international brand domestic such as Tsinghua Unisplendour there or be square, Rogor other brands, but the price is more expensive than in the sound quality. Domestic brands in the sound quality difference, there are different levels. Domestic brands such as admirers portable audio, thanks to the application of "the Soundtrack reduction technology" and "maze" technology, the sound quality with the international big-name summoned up the courage. The majority of domestic Sound card follows previous experience in audio production, technological innovation is relatively conservative. The easiest to identify sound card sound quality is good or bad way there is volume to the smallest grid, if there is no sound, break the sound or sour note, this sound card is recommended not to buy. Hurt people's ears nervous system because of the high-frequency sound and poor sound quality. Listen to a long time not only will make people feel emotions inexplicable impetuous, there are some illnesses such as heart disease, high blood pressure, such as might be induced. Second, look at the appearance of the product with the technical parameters, the general appearance of good or bad can reflect the emphasis on product brand card audio manufacturers, brand product appearance, especially in place of the seams, can handle very smooth. The overall feel is strong function cao for more humane. Level of technical parameters, the distortion is less than 0.1% than 0.3% of a good sound card. Audio material is 16 core high magnetic long-stroke, better sound quality than not using, such as admirers the M12 sound card audio series. Jiaming Yang 1503 +71780 +75 www.69139139.com 1399 +229 +631 Milan sun, Zheng * City Market Building 5, Unit 2, 208