RCF 310 /705 Basis Bundle@+*Bundle offer comprising*, 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