input signal

Hello all! Considering this amp. The input is noted as 220mV. It does not give me a range. It just states 220mV. What does this mean exactly? I'm currently running Lexus ES350 2020 HU into LC2i, and then LC2i into JD1000/1. JD1000/1 is set to high level input. If I were to switch out to the...