Audiocase S10, All-In-One Portable Sound System, Combination of powerful, compact, portable, battery-powered 3-channel PA system with digital reverb, guitar amp and high fidelity (HI-FI) speaker system, Advanced, DSP-optimised sound design, Class-D amplifier, Power: 3x 73 W, Maximum level: 125 dB @ 1m (ground plane, 1% THD), Drivers: 2x 10