Technical indicator

Frankly speaking, except for static interoperability distortion, the technical indicators of the gallbladder machine are not as good as the crystal machine, and the rest are not as good as the crystal machine. Technical indicators, gallbladder machines have no market long ago. In fact, the electro -sound technology is still very imperfect. The existing technical indicators can only explain the problem in one aspect, but it cannot reflect the problem in essence. For example, the existing amplifier index measurement is measured under the condition that the load is measured as a pure resistance (linear) load, and the actual load is compound resistance (non -linear) load. Another example is measuring the speaker at a power of 1M at a distance of 1W, and the actual listening sound cannot be 1M/1W. Therefore, such measurement indicators can only be used as a reference, not the standard for choosing an amplifier as a standard for the amplifier. Essence It can be said that a product with good technical indicators may not hear well, and a product with a good sense of hearing may be just flat (of course not bad). To ensure its unity and consistency, a large -scale production of electronic products must have a corresponding production standard (technical documents, production process documents, and inspection documents). Things, but these standards only guide the consistency and uniform use of the quality of product quality, without other significance. The production standards of an enterprise are only useful to the specific product of the enterprise, and it is useless to other enterprises. The sound quality of the sound is meaningless. To be precise, there are no standards to measure artwork. In reality, the higher the grade of audio products, and the less strict product production standards.