Fuhjythy To-30B DC5V Stereo Audio EQ High Medium and Low Three-Band Balanced Preamplifier Audio Balance Volume Control

It has left and right channel balance adjustment, volume control, and three-band equalization adjustment for high, middle and low frequencies. Since it is an isolated power supply, it can also be used in vehicles without worrying about common ground interference. This machine is equipped with an isolated boost power supply, ensuring the purity of the signal and a wide dynamic range. The signal processing circuit adopts the TI NE5532 operational amplifier, which is of high fidelity (HIFI) with low noise. Mute circuit, no impact sound during startup and shutdown.