RCF Sub 705-AS II, Active 15"" Bassreflex Subwoofer, Digital amplifier with 1400 Watt / 700 Watt-RMS, Equipped with: 15"" RCF Woofer with 3"" voice coil, Integrated DSP for X-Over and short-circuit protection, Peak SPL: 131 dB, Frequency range: 40 - 120 Hz, 2 x XLR-Input, 2 x XLR-Output, Crossover frequency: