This is a cheap EQ, if that's what you want. Don't bother to use one of these when you have a decent deck with 4 volts output. You will end up overdriving the amp. I had mine installed for less than 2 weeks and pulled it out. The system sounded more natural without it installed. The only place I would recommend this unit for an install is to have a cheap deck that barely pushes 2 volts. Then this would help you. Other than that, save your money and buy the real stuff.

the biggest flaw is cheap power, gound and remote terminal. The wires tend to come loose , but it might be the way i installed it either way the screws to clamp the wires are real flimsy and strip real easy .other then that it sounds ok