L1387 DAC 4X Four-Parallel TDA1387 Fever USB Decoder Finished Product Upgrade TDA1543

L1387DAC 4X Quad-parallel TDA1387 USB Fever DecoderBasic parameters:USB support frequency: 44.1K, 48K, 16bitBoard size: 65 * 54mmAnalog output level: 2V.Five circuit features:USB is directly powered by the CLC network, making the power supply pureFour TDA1387 decoding chips are connected in parallel.Accurate calculation of the operating point, as a resistor I/V circuit, the design accuracy of the DC load resistor is the most important prerequisite for sound quality.Perfect wiring, digital, analog multi-level decoupling, strict distinction.For a large number of fever components, please see the physical picture and component list.Installation and debugging points:This decoding does not require debugging. After welding, insert it into the computer USB port and drive it for self-recognition.The sound quality of this decoder is definitely not to take the price as a reference, her dynamic, analytical power, signal to noise ratio may subvert your cost-effectiveness cognition. The sound of 1387 is very close to the TDA1541 of the same door, you can refer to the TDA1541 adapter board design in my store (with four parallel 1387 analog TDA1541), it has a very sweet intermediate frequency, high frequency smooth and elegant, it is difficult to believe that this is a USB powered small decoder issued sound