TDA1514A Power Amplifier Board Two-Channel HIFI Rear Empty Board

TDA1514A Power Amplifier Board Two-Channel HIFI Rear Empty Board

• Using the official standard circuit, pure post-stage dual-channel solution: the power supply part refers to the design of the naim NAP150 post-stage power amplifier board with single cow and double rectifier filtering. The internal resistance of the power supply is lower, the separation degree is higher, and the sound quality is more mellow. The power supply is designed symmetrically at the back (it is a great damage to the sound quality on one side), the input is symmetrical, and the audio signal source is as far away as possible from strong interference sources such as power supply filtering. Separate front and rear, left and right, signal ground and power ground do not interfere with each other a little bit, and no noise can be heard when ears are attached to the speaker late at night!

• The board size is 100×100MM, and the screw hole distance is 94×94MM. The board's power input can use 6.3MM plug-in reeds, the audio input can be installed with 5MM3P terminal blocks, and the output can be cut off from the 2P terminal and changed to 1P, or the metal parts inside the terminal can be taken out and installed.

This board is a pure post-stage design with a magnification of 30. It can be directly connected to the audio source or matched with a high-quality pre-amplifier. Recommend dual 16V-22V power supply, (do not exceed AC dual 18V when pushing the 4Ω box)