Feature●Onboard bass frequency regulator potentiometer can make a relatively wide adjustment, so that subwoofer can be blend in the midtotreble harmoniously without a sense of violation●Phase switch designs, both noninverting amplifier and see‑saw amplifier are compatible to use●Both full frequency and bass output have independent interfaces, which is very convenient●Dual 5532 2.0 fulltone + 0.1 bass structure can control the volume of each channel of 2.0+0.1, adjustable bass frequency phase with powerful bass●Support both DC 1230V and AC 920V input voltage, powerful and practicalDescription