APBX 10 AS2The Prima APBX 10 AS2 active subwoofer, with the 10 inch driver, features a dedicated high performance amplification module that enhances all the passive box technologies, such as the 2S(2 Sides 2 Sounds) design, the Plug & Play terminal block and ultra compact size. The amplification module, with power outputs of 400W RMS, is developed with he li technology (high efficiency low impedance), which thanks to the absence of the DC DC voltage booster