"PSI Audio Sub A125-M Studio Black, Active 8"" Subwoofer, Magnetically shielded, Power output: 150 W (RMS), Class-G amplifier, Frequency response: 28 - 90 Hz, max. SPL (1 m): 111 dB, 2 Inputs: XLR balanced, 2 Outputs: XLR balanced, Dimensions (W x H...